SYRTE - IACI. AtoM Interferometry dual Gravi- GradiOmeter AMIGGO. from capability demonstrations in laboratory to space missions
|
|
- Kathlyn Newman
- 5 years ago
- Views:
Transcription
1 SYRTE - IACI AtoM Interferometry dual Gravi- GradiOmeter AMIGGO from capability demonstrations in laboratory to space missions A. Trimeche, R. Caldani, M. Langlois, S. Merlet, C. Garrido Alzar and F. Pereira Dos Santos Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
2 Outline Interest of Gravity Gradiometer State of the Art Atomic Interferometer Technical Improvements Advancements Next Steps Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
3 Outline Interest of Gravity Gradiometer State of the Art Atomic Interferometer Technical Improvements Advancements Next Steps Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
4 Interest of gravity gradiometer Determine the geoid with an accuracy of 1-2 cm. Components of the gravity gradient tensor with GOCE Difference between ground gravimetry, airborne gravimetry and airborne gravity gradiometry by Falcon Measure the subsurface density indicate oil or gas deposits. A 3D cube image linking the 2D modelled lines with a gravity gradiometry image by ARKeX Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
5 Interest of gravity gradiometer Newton's law of universal gravitation: g = G. M d 2 g : Surface gravity (Acc) G : gravitational constant M : mass of the object d : distance of the object Measurement of g -> Determination of M d?? -> Lack of information Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
6 Interest of gravity gradiometer Newton's law of universal gravitation: g = G. M d 2 g : Surface gravity (Acc) G : gravitational constant M : mass of the object d : distance of the object Measurement of g -> Determination of M d?? -> Lack of information Measurement of g & δg -> Determination of M & d!! Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
7 Outline Interest of Gravity Gradiometer State of the Art Atomic Interferometer Technical Improvements Advancements Next Steps Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
8 State of the art Gravity gradiometer sensitivity Cold atom s -2 / Hz [1] Lockheed Martin s -2 / Hz [2] Superconducting (ARKeX) s -2 / Hz [2] Lockheed Martin gradiometer consists of two opposing pairs of accelerometers arranged on a spinning disc Electrostatic (GOCE) s -2 / Hz [2] ARKeX gradiometer uses super conductivity for levitation of the proof masses and for the inherent stability GOCE gradiometer is a set of electrostatic servo-controlled accelerometers [1] P. Asenbaum et al., Phys. Rev. Lett. 118, (2017) [2] D. DiFrancesco et al., Geophys. Prospect 57, (2009) Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
9 17 cm State of the art and limitation Reached stability [1] : m.s 1s laser bench atomic interferometer Accuracy: 4, m.s -2 limited by the wavefront aberration: m.s m.s 1500 s Temperature = 2 µk Frequency = 3 Hz electronic bench magnetic shield Mobile cold atom gravimeter (LNE-SYRTE) 5 cm [3] P. Gillot et al., Metrologia 51, L15 (2014) Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
10 Outline Interest of Gravity Gradiometer State of the Art Atomic Interferometer Technical Improvements Advancements Next Steps Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
11 Optical Mach-Zehnder interferometer The light beam is separated in two paths, reflected and recombined. light source mirror The phase shift depends of the length difference between the two arms. beam splitter φ 1 beam splitter mirror φ 2 detector I 1 ϕ The intensity detected depend of the phase of the interferometer Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
12 Tool for atom interferometry When the atoms absorb a photon they receive a recoil energy in the direction of the light beam. k 1, ω 1 Bragg diffraction Simultaneous twophotons transition absorption ω 1 ω 2 emission ħk 1 ħ + ħk eff Total wave number: k eff = k 1 + state When the atoms emit a photon they receive a recoil energy in the direction of the light beam., ω 2 1/2 π/2 π τ Rabi oscillations Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
13 Mach-Zehnder atom interferometer state 1 1/2 π/2 π The beamsplitter cubes are replaced by pulses which half the atoms changes state. τ z beam splitter cube beam splitter pulse k 1 mirror k 1 mirror mirror pulse k 1 0 T 2T beam splitter pulse beam splitter cube The mirrors are replaced by pulses which all the atoms changes state. ϕ = k eff. a. T 2 2. k eff. Ω a. T 3 t a Ω Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
14 Outline Interest of Gravity Gradiometer State of the Art Atomic Interferometer Technical Improvements Advancements Next Steps Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
15 Our project : Gradiometer Combining : Ultra Cold Atoms, multiphotonic transitions frame magnetic shield second science chamber 2D MOT 2D MOT 2 gravimeters interogated by the same laser. The same bias detection first science chamber Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
16 Atom chip : Ultra-cold atoms trapping level Evaporative cooling m F = +1 Atoms are trapped in a Ioffe-Pritchard trap. Atoms are trapped in a quadrupole field. m F = 0 ħω RF ħωrf Ioffe-Pritchard wire field field constant field quadrupole field Atom chip untrapping level Zeeman sub-levels Magnetic field m F = -1 The hottest atom are transferred into an untrapping state by radio-frequency in order to keep only the ultra-cold atoms. 50 nk Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
17 Increase separation of atoms z k 1 k 1 k 1 Increasing the momentum transferred. a k eff = k T 2T +ħk eff +Nħk eff t The sensitivity of the measurement depends of the interferometer area. Interferometer phase shift: ϕ = N N. k eff. a. T 2 Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
18 Large momentum transfer Not two but several photons transferred per atom. absorption Nk 1, ω 1 ω 1 ω 2 Nħk 1 Nħ emission The recoil velocity is N-time higher. + ħk eff E = p2 2m ω 1 ω 2 ω 1 ω 2 ω 1 ω 2 0 ħ eff 2ħk 4 eff Nħk 6 eff Resonant frequency δ p Using high-power laser on compact atomic cloud. N, ω 2 + Nħk eff The detuning is chosen so that the atom have to absorb and emit several photon. Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
19 Outline Interest of Gravity Gradiometer State of the Art Atomic Interferometer Technical Improvements Advancements Next Steps Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
20 Our objective - Two science chambers. - Two atom chips. - One interrogation laser. magnetic shield second science chamber 200 cm Trapping on atom chip. + Separation of 1 m between the two chambers. High power laser source. first science chamber Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
21 1 st Source Chamber Bloch & Raman beams injection Bias coils Tube MOT 2D Ionic pump MOT 3D Detection Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
22 The Bloch & Raman Injection Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
23 Test of the 1 st Source Chamber z k 1 k 1 k 1 Raman beams 2 Bloch elevator laser 1 cooling laser 0 T 2T + ħk eff t cooling laser Bragg repumper laser 1 laser detection laser Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
24 Bloch elevator z k 1 k 1 k 1 TOF signals obtained for launching velocities varying between 0 and 3.12 m/s. Atom : 87Rb Laser Bloch : 250 mw Atom temperature : 1,7 µk 0 T 2T + ħk eff t Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
25 Raman interferometer z k 1 k 1 k 1 Phase measurement on the launched atoms during ascension at multiple times. Launch speed : 1.76 m/s Theoretical apogee : 16.5 cm Π pulse : 4 μs 0 T 2T + ħk eff t Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
26 Interference with 2 clouds z k 1 k 1 k 1 Fringes of 2 synchronous interferometers : 1 launched and 1 dropped cloud of atoms. Launched cloud : Launch speed : 1.76 m/s Theo. apogee : 16.5 cm Π pulse : 4 μs 0 T 2T + ħk eff t Dropped cloud : Created during the ascending of the first cloud. Dropped when the first cloud reaches the apogee. Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
27 Differential interferometer z k 1 k 1 k 1 Fringes of 2 synchronous interferometers : 1 launched and 1 dropped cloud of atoms. We increase the interference time. 0 T 2T + ħk eff t We don t observe fringes BUT we observe some correlation between the phase fluctuations. We make a parametric plot between those two signals!! Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
28 Differential interferometer z k 1 k 1 k 1 Fringes of 2 synchronous interferometers : 1 launched and 1 dropped cloud of atoms. We increase the interference time. 0 T 2T + ħk eff t We don t observe fringes BUT we observe some correlation between the phase fluctuations. Δφ=π/2 We make a parametric plot between those two signals!! Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
29 Differential interferometer The same for various interference time The differential phase depends on T Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
30 Outline Interest of Gravity Gradiometer State of the Art Atomic Interferometer Technical Improvements Advancements Next Steps Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
31 Next Steps Performances? (in the lab) Performances? p = 100 ħk, 2T = 500 ms, Δz = 1 m T C = 2 s, n = 10 5 at, T = 300 nk One cloud sensitivity Differential sensitivity m.s -2 / Hz 126 1s In Space? No gravity so 2T can be increased, for ex 2T=5s 2 1s Next: Improve these performances (launch higher and increase T & the contrast ). Reject the vibration noises and measure g with one source. Mount the 2 nd source chamber & making the same tests. Exchange the reflecting mirror by the atom chips and test them. Cooling down the atoms to reach a few hundreds of nano-k. Test the Bragg diffraction in order to increase the interferometer sensitivity. Measure g & δg with high precision. Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
32 Journées Gphys 2017, Observatoire de Paris, Meudon - France, 19 June
Absolute gravity measurements with a cold atom gravimeter
Absolute gravity measurements with a cold atom gravimeter Anne Louchet-Chauvet, Sébastien Merlet, Quentin Bodart, Tristan Farah, Arnaud Landragin, Franck Pereira Dos Santos LNE-SYRTE Observatoire de Paris
More informationTravaux en gravimétrie au SYRTE
Travaux en gravimétrie au SYRTE F. Pereira Dos Santos LNE-SYRTE (OP, LNE, UPMC, CNRS) https://syrte.obspm.fr/spip/science/iaci/ CNFGG, 1er Février 2017 1 Outline 1. Principle of Atom Interferometry 2.
More informationCold atom gyroscope with 1 nrad.s -1 rotation stability
Cold atom gyroscope with 1 nrad.s -1 rotation stability D. Savoie, I. Dutta, B. Fang, B. Venon, N. Miélec, R. Sapam, C. Garrido Alzar, R. Geiger and A. Landragin LNE-SYRTE, Observatoire de Paris IACI team
More informationAdvanced accelerometer/gradiometer concepts based on atom interferometry
Advanced accelerometer/gradiometer concepts based on atom interferometry Malte Schmidt, Alexander Senger, Matthias Hauth, Sebastian Grede, Christian Freier, Achim Peters Humboldt-Universität zu Berlin
More informationState of the art cold atom gyroscope without dead times
State of the art cold atom gyroscope without dead times Remi Geiger SYRTE, Observatoire de Paris GDR IQFA Telecom Paris November 18 th, 2016 I. Dutta, D. Savoie, B. Fang, B. Venon, C. L. Garrido Alzar,
More informationBloch oscillations of ultracold-atoms and Determination of the fine structure constant
Bloch oscillations of ultracold-atoms and Determination of the fine structure constant Pierre Cladé P. Cladé Bloch oscillations and atom interferometry Sept., 2013 1 / 28 Outlook Bloch oscillations of
More informationGravitational tests using simultaneous atom interferometers
Gravitational tests using simultaneous atom interferometers Gabriele Rosi Quantum gases, fundamental interactions and cosmology conference 5-7 October 017, Pisa Outline Introduction to atom interferometry
More informationTowards compact transportable atom-interferometric inertial sensors
Towards compact transportable atom-interferometric inertial sensors G. Stern (SYRTE/LCFIO) Increasing the interrogation time T is often the limiting parameter for the sensitivity. Different solutions:
More informationShau-Yu Lan 藍劭宇. University of California, Berkeley Department of Physics
Atom Interferometry Experiments for Precision Measurement of Fundamental Physics Shau-Yu Lan 藍劭宇 University of California, Berkeley Department of Physics Contents Principle of Light-Pulse Atom Interferometer
More informationForca-G: A trapped atom interferometer for the measurement of short range forces
Forca-G: A trapped atom interferometer for the measurement of short range forces Bruno Pelle, Quentin Beaufils, Gunnar Tackmann, Xiaolong Wang, Adèle Hilico and Franck Pereira dos Santos Sophie Pelisson,
More informationConstruction of an absolute gravimeter using atom interferometry with cold 87. Rb atoms
Construction of an absolute gravimeter using atom interferometry with cold 87 Rb atoms Patrick Cheinet Julien Le Gouët Kasper Therkildsen Franck Pereira Dos Santos Arnaud Landragin David Holleville André
More informationPrecision atom interferometry in a 10 meter tower
Precision atom interferometry in a 10 meter tower Leibniz Universität Hannover RTG 1729, Lecture 1 Jason Hogan Stanford University January 23, 2014 Cold Atom Inertial Sensors Cold atom sensors: Laser cooling;
More informationAtom interferometry in microgravity: the ICE project
Atom interferometry in microgravity: the ICE project (4) G. Stern 1,2, R. Geiger 1, V. Ménoret 1,B. Battelier 1, R. Charrière 3, N. Zahzam 3, Y. Bidel 3, L. Mondin 4, F. Pereira 2, A. Bresson 3, A. Landragin
More informationSensitivity limits of atom interferometry gravity gradiometers and strainmeters. Fiodor Sorrentino INFN Genova
Sensitivity limits of atom interferometry gravity gradiometers and strainmeters Fiodor Sorrentino INFN Genova 1 Outline AI sensors, state of the art performance Main noise sources Potential improvements
More informationAtom Interferometry II. F. Pereira Dos Santos
Atom Interferometry II F. Pereira Dos Santos Organization of the lecture 1 : Applications of inertial sensors/gravimetry : A case study : the SYRTE atom gravimeter 3 : Towards more compact sensors 4 :
More informationPrecision Interferometry with a Bose-Einstein Condensate. Cass Sackett. Research Talk 17 October 2008
Precision Interferometry with a Bose-Einstein Condensate Cass Sackett Research Talk 17 October 2008 Outline Atom interferometry Bose condensates Our interferometer One application What is atom interferometry?
More informationHybrid Atom-Optical Interferometry for Gravitational Wave Detection and Geophysics
Hybrid Atom-Optical Interferometry for Gravitational Wave Detection and Geophysics Remi Geiger, SYRTE for the MIGA consortium EGAS 46, July 3rd 2014, Lille, France http://syrte.obspm.fr/tfc/capteurs_inertiels
More informationMultipath Interferometer on an AtomChip. Francesco Saverio Cataliotti
Multipath Interferometer on an AtomChip Francesco Saverio Cataliotti Outlook Bose-Einstein condensates on a microchip Atom Interferometry Multipath Interferometry on an AtomChip Results and Conclusions
More informationAtomic Quantum Sensors and Fundamental Tests
Atomic Quantum Sensors and Fundamental Tests C. Salomon Laboratoire Kastler Brossel, Ecole Normale Supérieure, Paris ESA- ESTEC-FPRAT, January 21th, 2010 Fundamental Questions 1) Missing mass in the Universe
More informationGravimètre Quantique Absolu : une utilisation opérationnelle des atomes froids pour la mesure de gravité. Dr. Jean Lautier-Gaud Journée CNFGG
Gravimètre Quantique Absolu : une utilisation opérationnelle des atomes froids pour la mesure de gravité Dr. Jean Lautier-Gaud Journée CNFGG Outline Brief overview of Muquans Absolute gravimetry with cold
More informationAtom interferometry. Quantum metrology and fundamental constants. Laboratoire de physique des lasers, CNRS-Université Paris Nord
Diffraction Interferometry Conclusion Laboratoire de physique des lasers, CNRS-Université Paris Nord Quantum metrology and fundamental constants Diffraction Interferometry Conclusion Introduction Why using
More informationLarge Momentum Beamsplitter using Bloch Oscillations
Large Momentum Beamsplitter using Bloch Oscillations Pierre Cladé, Saïda Guellati-Khélifa, François Nez, and François Biraben Laboratoire Kastler Brossel, UPMC, Ecole Normale Supérieure, CNRS, 4 place
More informationPROGRESS TOWARDS CONSTRUCTION OF A FERMIONIC ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK
PROGRESS TOWARDS CONSTRUCTION OF A FERMIONIC ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK Megan K. Ivory Advisor: Dr. Seth A. Aubin College of William and Mary Atomic clocks are the most accurate time and
More informationAtom interferometry applications in gravimetry
Prof. Achim Peters, Ph.D. Atom interferometry applications in gravimetry and some thoughts on current sensitivity limitations and concepts for future improvements International Workshop on Gravitational
More informationCharacterization of an Atom Interferometer Gravimeter with Classical Sensors for the Use in Geodesy and Geophysics
Characterization of an Atom Interferometer Gravimeter with Classical Sensors for the Use in Geodesy and Geophysics M. Schilling C. Freier V. Schkolnik M. Hauth H. Wziontek H.-G. Scherneck A. Peters and
More informationLecture 2. Trapping of neutral atoms Evaporative cooling. Foot 9.6, , 10.5
Lecture Trapping of neutral atoms Evaporative cooling Foot 9.6, 10.1-10.3, 10.5 34 Why atom traps? Limitation of laser cooling temperature (sub)-doppler (sub)-recoil density light-assisted collisions reabsorption
More informationcond-mat/ v2 16 Aug 1999
Mach-Zehnder Bragg interferometer for a Bose-Einstein Condensate Yoshio Torii,* Yoichi Suzuki, Mikio Kozuma and Takahiro Kuga Institute of Physics, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902,
More informationATOM INTERFEROMETERS WITH BEC A theoretical analysis based on mean-field approximation CHIEN-NAN LIU FU-JEN CATHOLIC UNIVERSITY TAIPEI, TAIWAN
1 ATOM INTERFEROMETERS WITH BEC A theoretical analysis based on mean-field approximation CHIEN-NAN LIU FU-JEN CATHOLIC UNIVERSITY TAIPEI, TAIWAN Collaborators 2 Prof. Shinichi Watanabe G. Gopi Krishna
More informationProgress on Atom Interferometer (AI) in BUAA
Progress on Atom Interferometer (AI) in BUAA Group of Prof. FANG Jiancheng Beihang University ZHANG Yuchi, Hu Zhaohui, QI Lu, WANG Tongyu, WANG Tao 01.09.2011 7 th UK-China Workshop on Space Science and
More informationPROGRESS TOWARDS CONSTRUCTION OF A FERMION ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK
PROGRESS TOWARDS CONSTRUCTION OF A FERMION ATOMIC CLOCK FOR NASA S DEEP SPACE NETWORK Megan K. Ivory Advisor: Dr. Seth A. Aubin College of William and Mary Abstract: The most accurate time and frequency
More informationConfining ultracold atoms on a ring in reduced dimensions
Confining ultracold atoms on a ring in reduced dimensions Hélène Perrin Laboratoire de physique des lasers, CNRS-Université Paris Nord Charge and heat dynamics in nano-systems Orsay, October 11, 2011 What
More informationAtom interferometry test of short range gravity : recent progress in the ForCa-G experiment
Atom interferometry test of short range gravity : recent progress in the ForCa-G experiment Experiment : Matthias Lopez, Obs Cyrille Solaro, Obs Franck Pereira, Obs Theory : Astrid Lambrecht, LKB Axel
More informationBuilding Blocks for Quantum Computing Part IV. Design and Construction of the Trapped Ion Quantum Computer (TIQC)
Building Blocks for Quantum Computing Part IV Design and Construction of the Trapped Ion Quantum Computer (TIQC) CSC801 Seminar on Quantum Computing Spring 2018 1 Goal Is To Understand The Principles And
More informationUltracold atoms and molecules
Advanced Experimental Techniques Ultracold atoms and molecules Steven Knoop s.knoop@vu.nl VU, June 014 1 Ultracold atoms laser cooling evaporative cooling BEC Bose-Einstein condensation atom trap: magnetic
More informationarxiv: v1 [physics.atom-ph] 19 Jun 2014
arxiv:1406.5134v1 [physics.atom-ph] 19 Jun 2014 Stability comparison of two absolute gravimeters: optical versus atomic interferometers P. Gillot 1, O. Francis 2, A. Landragin 1, F. Pereira Dos Santos
More informationAtom Quantum Sensors on ground and in space
Atom Quantum Sensors on ground and in space Ernst M. Rasel AG Wolfgang Ertmer Quantum Sensors Division Institut für Quantenoptik Leibniz Universität Hannover IQ - Quantum Sensors Inertial Quantum Probes
More informationAtom Interferometry I. F. Pereira Dos Santos
Atom Interferometry I F. Pereira Dos Santos SYRTE SYRTE is one of the 4 Departments of Paris Obs. SYRTE research activities : - Time and Frequency Metrology (LNE-SYRTE) - Fundamental Astronomy - History
More informationAtom Interferometry for Detection of Gravitational Waves. Mark Kasevich Stanford University
Atom Interferometry for Detection of Gravitational Waves Mark Kasevich Stanford University kasevich@stanford.edu Atom-based Gravitational Wave Detection Why consider atoms? 1) Neutral atoms are excellent
More informationCharacterization and limits of a cold atom Sagnac interferometer
Characterization and limits of a cold atom Sagnac interferometer A. Gauguet, Benjamin Canuel, Thomas Lévèque, Walid Chaibi, Arnaud Landragin To cite this version: A. Gauguet, Benjamin Canuel, Thomas Lévèque,
More informationLaser Cooling and Trapping of Atoms
Chapter 2 Laser Cooling and Trapping of Atoms Since its conception in 1975 [71, 72] laser cooling has revolutionized the field of atomic physics research, an achievement that has been recognized by the
More informationMEASUREMENT OF SHORT RANGE FORCES USING COLD ATOMS
1 MEASUREMENT OF SHORT RANGE FORCES USING COLD ATOMS F. PEREIRA DOS SANTOS, P. WOLF, A. LANDRAGIN, M.-C. ANGONIN, P. LEMONDE, S. BIZE, and A. CLAIRON LNE-SYRTE, CNRS UMR 8630, UPMC, Observatoire de Paris,
More information6. Interference of BECs
6. Interference of BECs Josephson effects Weak link: tunnel junction between two traps. Josephson oscillation An initial imbalance between the population of the double well potential leads to periodic
More informationSupported by NIST, the Packard Foundation, the NSF, ARO. Penn State
Measuring the electron edm using Cs and Rb atoms in optical lattices (and other experiments) Fang Fang Osama Kassis Xiao Li Dr. Karl Nelson Trevor Wenger Josh Albert Dr. Toshiya Kinoshita DSW Penn State
More informationLimits of the separated-path Ramsey atom interferometer
J. Phys. B: At. Mol. Opt. Phys. 3 (1999) 5033 5045. Printed in the UK PII: S0953-4075(99)06844-3 Limits of the separated-path Ramsey atom interferometer R M Godun,CLWebb, P D Featonby, M B d Arcy, M K
More informationarxiv: v2 [gr-qc] 6 Jan 2009
An Atomic Gravitational Wave Interferometric Sensor (AGIS) arxiv:0806.15v [gr-qc] 6 Jan 009 Savas Dimopoulos, 1, Peter W. Graham,, Jason M. Hogan, 1, Mark A. Kasevich, 1, and Surjeet Rajendran,1, 1 Department
More informationLecture 2:Matter. Wave Interferometry
Lecture :Matter Wave Interferometry Matter wave interferometry: as old as Quantum Mechanics Neutron diffraction and electron diffraction are standard investigation tools in solid state physics Cold atoms:
More informationReviewers' comments: Reviewer #1 (Remarks to the Author):
Reviewers' comments: Reviewer #1 (Remarks to the Author): In their manuscript Dual Matter-Wave Inertial Sensors in Weightlessness Brynle Barrett et al. describe an dual species atom interferometer experiment
More informationPrimary Frequency Standards at NIST. S.R. Jefferts NIST Time and Frequency Division
Primary Frequency Standards at NIST S.R. Jefferts NIST Time and Frequency Division Outline Atomic Clocks - general Primary Frequency Standard Beam Standards Laser-Cooled Primary Standards Systematic Frequency
More informationarxiv: v1 [physics.atom-ph] 17 Dec 2015
arxiv:1512.566v1 [physics.atom-ph] 17 Dec 215 Mobile quantum gravity sensor with unprecedented stability C. Freier, 1 M. Hauth, 1 V. Schkolnik, 1 B. Leykauf, 1 M. Schilling 2,H. Wziontek 3, H.-G. Scherneck
More informationarxiv: v1 [physics.ins-det] 25 May 2017
Prepared for submission to JINST arxiv:1705.09376v1 [physics.ins-det] 25 May 2017 Atom Interferometry for Dark Contents of the Vacuum Searches O. Burrow, a,1 A. Carroll, a S. Chattopadhyay, b,c,2 J. Coleman,
More informationAdvances and Challenges in the Development and Deployment of Gravity Gradiometer Systems
Index Table of contents Advances and Challenges in the Development and Deployment of Gravity Gradiometer Systems D. Difrancesco Lockheed Martin Summary The past few years have witnessed significant advances
More informationConcept study and preliminary design of a cold atom interferometer for space gravity gradiometry
Concept study and preliminary design of a cold atom interferometer for space gravity gradiometry A. Trimeche, B. Battelier, D Becker, A. Bertoldi, P. Bouyer, C. Braxmaier, E. Charron, R Corgier, M Cornelius,
More informationFrequency Tunable Atomic Magnetometer based on an Atom Interferometer
Frequency Tunable Atomic Magnetometer based on an Atom Interferometer D.A. Braje 1, J.P. Davis 2, C.L. Adler 2,3, and F.A. Narducci 2 Blaubeuren Quantum Optics Summer School 29 July 2013 1 MIT Lincoln
More informationOptical Lattice Clock with Neutral Mercury
Optical Lattice Clock with Neutral Mercury R. Tyumenev, Z. Xu, J.J. McFerran, Y. Le Coq and S. Bize SYRTE, Observatoire de Paris 61 avenue de l Observatoire, 75014 Paris, France rinat.tyumenev@obspm.fr
More informationExperimental AMO eets meets M odel Model Building: Part I (Precision Atom Interferometry)
Experimental AMO meets Model Building: Part I (Precision Atom Interferometry) Interference of Rb atoms Chiow, et. al, PRL, 2011 Young s double slit with atoms Young s 2 slit with Helium atoms Interference
More informationIn Situ Imaging of Cold Atomic Gases
In Situ Imaging of Cold Atomic Gases J. D. Crossno Abstract: In general, the complex atomic susceptibility, that dictates both the amplitude and phase modulation imparted by an atom on a probing monochromatic
More informationThe gravitational wave detector VIRGO
The gravitational wave detector VIRGO for the VIRGO collaboration Raffaele Flaminio Laboratoire d Annecy-le-Vieux de Physique des Particules (LAPP) IN2P3 - CNRS Summary I. A bit of gravitational wave physics
More informationQuantum superposition at the half-metre scale
Quantum superposition at the half-metre scale 16.04.19 Jinuk Kim Quantum-Field Laser Laboratory Department of Physics and Astronomy Seoul National University, Korea Your Occasion April 25, 2016 1 B.A.,
More informationTHE SPACE OPTICAL CLOCKS PROJECT
THE SPACE OPTICAL CLOCKS PROJECT S. Schiller (1), G. M. Tino (2), P. Lemonde (3), U. Sterr (4), A. Görlitz (1), N. Poli (2), A. Nevsky (1), C. Salomon (5) and the SOC team (1,2,3,4) (1) Heinrich-Heine-Universität
More informationCompensation of gravity gradients and rotations in precision atom interferometry
Compensation of gravity gradients and rotations in precision atom interferometry Albert Roura partly based on Phys. Rev. Lett. 118, 160401 (2017) Vienna, 11 April 2018 Motivation Tests of universality
More information12 rad be Ω max 10 / Hz. This result is better by two orders of magnitude than any
1 Abstract Recent developments in spatial atom interferometry have stimulated new fields in atomic physics and quantum optics, opening up new areas in fundamental research. Moreover, there are ideas for
More informationA Miniature Cold-Atom Frequency Standard
A Miniature Cold-Atom Frequency Standard 1 V.Shah, 2 M. Mescher, 2 R. Stoner, 3 V. Vuletic, 1 R. Lutwak 1 Symmetricom Technology Realization Centre, Beverly, MA, 01915 2 The Charles Stark Draper Laboratory,
More information(Noise) correlations in optical lattices
(Noise) correlations in optical lattices Dries van Oosten WA QUANTUM http://www.quantum.physik.uni mainz.de/bec The Teams The Fermions: Christoph Clausen Thorsten Best Ulrich Schneider Sebastian Will Lucia
More informationOptical manipulation of atomic motion for a compact gravitational sensor with a Bose-Einstein condensate interferometer
Optical manipulation of atomic motion for a compact gravitational sensor with a Bose-Einstein condensate interferometer A Dissertation Presented to the Faculty of the School of Engineering and Applied
More informationGround state cooling via Sideband cooling. Fabian Flassig TUM June 26th, 2013
Ground state cooling via Sideband cooling Fabian Flassig TUM June 26th, 2013 Motivation Gain ultimate control over all relevant degrees of freedom Necessary for constant atomic transition frequencies Do
More informationA Study of Matter-Wave Diffraction in Bose- Einstein Condensates for Atom Interferometry Applications
Bates College SCARAB Honors Theses Capstone Projects Spring 5-2014 A Study of Matter-Wave Diffraction in Bose- Einstein Condensates for Atom Interferometry Applications Yang Guo Bates College, yguo@bates.edu
More informationDevelopment of a Transportable Cold Atom Gradiometer.
Development of a Transportable Cold Atom Gradiometer. by Andrew Hinton A thesis submitted to The University of Birmingham for the degree of DOCTOR OF PHILOSOPHY Ultracold Atoms Group School of Physics
More informationarxiv: v3 [physics.atom-ph] 16 Oct 2015
Influence of chirping the Raman lasers in an atom gravimeter: phase shifts due to the Raman light shift and to the finite speed of light B. Cheng, P. Gillot, S. Merlet, F. Pereira Dos Santos arxiv:1506.03207v3
More informationQuantum optics of many-body systems
Quantum optics of many-body systems Igor Mekhov Université Paris-Saclay (SPEC CEA) University of Oxford, St. Petersburg State University Lecture 2 Previous lecture 1 Classical optics light waves material
More informationNew Searches for Subgravitational Forces
New Searches for Subgravitational Forces Jay Wacker SLAC University of California, Davis November 26, 2007 with Peter Graham Mark Kasevich 1 New Era in Fundamental Physics Energy Frontier LHC Nature of
More informationCold Atom Navigation Sensors. Atom Interferometry Group Stanford Center for Position, Navigation and Time Mark Kasevich
Cold Atom Navigation Sensors Atom Interferometry Group Stanford Center for Position, Navigation and Time Mark Kasevich Navigation strategies Radio navigation Radio reference signals allow trajectory determination
More informationChapter 2 Experimental Realization of One-Dimensional Bose Gases
Chapter 2 Experimental Realization of One-Dimensional Bose Gases In this chapter we review the basic concepts necessary for the realization of a degenerate 1D Bose gas, as well as the actual experimental
More informationPoint source atom interferometry with a cloud of finite size
Point source atom interferometry with a cloud of finite size Gregory W. Hoth, 1, a) Bruno Pelle, 1 Stefan Riedl, 1 John Kitching, 1 and Elizabeth A. Donley 1 National Institute of Standards and Technology,
More informationThe physics of cold atoms from fundamental problems to time measurement and quantum technologies. Michèle Leduc
The physics of cold atoms from fundamental problems to time measurement and quantum technologies Michèle Leduc Lima, 20 October 2016 10 5 Kelvin 10 4 Kelvin Surface of the sun 10 3 Kelvin 10 2 Kelvin earth
More informationAtom lasers. FOMO summer school 2016 Florian Schreck, University of Amsterdam MIT 1997 NIST Munich Yale 1998
Atom lasers MIT 1997 Yale 1998 NIST 1999 Munich 1999 FOMO summer school 2016 Florian Schreck, University of Amsterdam Overview What? Why? Pulsed atom lasers Experiments with atom lasers Continuous atom
More informationDevelopment and Characterization of a Magneto-Optical Trap for Rubidium John M. Robinson, Yu Liu, David P. Shelton
Development and Characterization of a Magneto-Optical Trap for Rubidium John M. Robinson, Yu Liu, David P. Shelton University of Nevada, Las Vegas, Department of Physics & Astronomy DOI: http://dx.doi.org/10.15629/6.7.8.7.5_1-1_f-2014_2
More informationCold atom interferometers for inertial measurements. Arnaud Landragin
Cold atom interferometers for inertial measurements Arnaud Landragin Atom interferometry as Inertial sensors long term stability and accuracy Inertial navigation satellite, submarine Fundamental physics
More informationLaser cooling and trapping
Laser cooling and trapping William D. Phillips wdp@umd.edu Physics 623 14 April 2016 Why Cool and Trap Atoms? Original motivation and most practical current application: ATOMIC CLOCKS Current scientific
More informationHow to measure a distance of one thousandth of the proton diameter? The detection of gravitational waves
How to measure a distance of one thousandth of the proton diameter? The detection of gravitational waves M. Tacca Laboratoire AstroParticule et Cosmologie (APC) - Paris Journée GPhys - 2016 July 6th General
More informationarxiv:physics/ v1 [physics.atom-ph] 25 May 2001
Sensitive Absolute Gravity Gradiometry Using Atom Interferometry J. M. McGuirk, G. T. Foster, J. B. Fixler, M.J. Snadden, and M. A. Kasevich Physics Department, Yale University, New Haven CT, 06520 (May
More informationRDECOM. Optimal pulse schemes for high-precision atom interferometry U.S.ARMY. Michael Goerz 1, Paul Kunz 1, Mark Kasevich 2, Vladimir Malinovsky 1
U.S.ARMY U.S. ARMY RDCOM AH.L RSARCH LABORATORY Optimal pulse schemes for high-precision atom interferometry Michael Goerz 1, Paul Kunz 1, Mark Kasevich 2, Vladimir Malinovsky 1 1 U.S. Army Research Lab,
More informationExploring the quantum dynamics of atoms and photons in cavities. Serge Haroche, ENS and Collège de France, Paris
Exploring the quantum dynamics of atoms and photons in cavities Serge Haroche, ENS and Collège de France, Paris Experiments in which single atoms and photons are manipulated in high Q cavities are modern
More informationAtom-based Frequency Metrology: Real World Applications
Atom-based Frequency Metrology: Real World Applications Anne Curtis National Physical Laboratory Teddington, UK Outline Introduction to atom-based frequency metrology Practical Uses - Tests of fundamental
More informationNanoKelvin Quantum Engineering
NanoKelvin Quantum Engineering Few x 10 5 Yb atoms 250mm 400 nk 250 nk < 200 nk Control of atomic c.m. position and momentum. Today: Bose-Fermi double superfluid Precision BEC interferometry Ultracold
More informationUNIVERSITY OF SOUTHAMPTON
UNIVERSITY OF SOUTHAMPTON PHYS6012W1 SEMESTER 1 EXAMINATION 2012/13 Coherent Light, Coherent Matter Duration: 120 MINS Answer all questions in Section A and only two questions in Section B. Section A carries
More informationAn ultra-stable thermal environment in high precision optical metrology
An ultra-stable thermal environment in high precision optical metrology Alejandro Torrents Rufas Outline GRLOW Mach Zehnder Interferometer Ultra-stable thermal environment OPTOMETER Passive thermal shields
More informationNonlinear Quantum Interferometry with Bose Condensed Atoms
ACQAO Regional Workshop 0 onlinear Quantum Interferometry with Bose Condensed Atoms Chaohong Lee State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun
More informationLes Puces à Atomes. Jakob Reichel. Laboratoire Kastler Brossel de l E.N.S., Paris
Les Puces à Atomes Jakob Reichel Laboratoire Kastler Brossel de l E.N.S., Paris Atom chips: Cold atoms meet the nanoworld ~ 100 nm BEC (~ 10 5 atoms, ~ 100 nk) microstructured surface bulk material ( ~
More informationarxiv:physics/ v2 [physics.atom-ph] 12 Dec 2005
A new determination of the fine structure constant based on Bloch oscillations of ultracold atoms in a vertical optical lattice arxiv:physics/0510101v2 [physics.atom-ph] 12 Dec 2005 Pierre Cladé, 1 Estefania
More informationIon traps. Trapping of charged particles in electromagnetic. Laser cooling, sympathetic cooling, optical clocks
Ion traps Trapping of charged particles in electromagnetic fields Dynamics of trapped ions Applications to nuclear physics and QED The Paul trap Laser cooling, sympathetic cooling, optical clocks Coulomb
More informationHigh precision measurement of the D-line tune-out wavelength in 87 Rb using a Bose-Einstein condensate interferometer
High precision measurement of the D-line tune-out wavelength in 87 Rb using a Bose-Einstein condensate interferometer Bob Leonard B.S., West Virginia University, 2008 A Dissertation presented to the Graduate
More informationLes Houches 2009: Metastable Helium Atom Laser
Les Houches 2009: Metastable Helium Atom Laser Les Houches, Chamonix, February 2005 Australian Research Council Centre of Excellence for Quantum-Atom Optics UQ Brisbane SUT Melbourne ANU Canberra Snowy
More informationAll-optical formation of a Bose-Einstein condensate for applications in scanning electron microscopy
Appl. Phys. B manuscript No. (will be inserted by the editor) All-optical formation of a Bose-Einstein condensate for applications in scanning electron microscopy T. Gericke 1, P. Würtz 1, D. Reitz 1,
More informationDeterministic Coherent Writing and Control of the Dark Exciton Spin using Short Single Optical Pulses
Deterministic Coherent Writing and Control of the Dark Exciton Spin using Short Single Optical Pulses Ido Schwartz, Dan Cogan, Emma Schmidgall, Liron Gantz, Yaroslav Don and David Gershoni The Physics
More informationComparison with an uncertainty of between two primary frequency standards
Comparison with an uncertainty of 2 10-16 between two primary frequency standards Cipriana Mandache, C. Vian, P. Rosenbusch, H. Marion, Ph. Laurent, G. Santarelli, S. Bize and A. Clairon LNE-SYRTE, Observatoire
More informationTowards mobile quantum sensors for gravity surveys.
Towards mobile quantum sensors for gravity surveys. by Alexander Niggebaum A thesis submitted to The University of Birmingham for the degree of DOCTOR OF PHILOSOPHY Quantum Matter Research Group School
More informationEYLSA laser for atom cooling
1/7 For decades, cold atom system and Bose-Einstein condensates (obtained from ultra-cold atoms) have been two of the most studied topics in fundamental physics. Several Nobel prizes have been awarded
More informationarxiv:quant-ph/ v2 5 Feb 2001
Understanding the production of dual BEC with sympathetic cooling G. Delannoy, S. G. Murdoch, V. Boyer, V. Josse, P. Bouyer and A. Aspect Groupe d Optique Atomique Laboratoire Charles Fabry de l Institut
More informationHigh Accuracy Strontium Ion Optical Clock
High Accuracy Strontium Ion Optical Clock Helen Margolis, Geoff Barwood, Hugh Klein, Guilong Huang, Stephen Lea, Krzysztof Szymaniec and Patrick Gill T&F Club 15 th April 2005 Outline Optical frequency
More informationQuantum Mechanica. Peter van der Straten Universiteit Utrecht. Peter van der Straten (Atom Optics) Quantum Mechanica January 15, / 22
Quantum Mechanica Peter van der Straten Universiteit Utrecht Peter van der Straten (Atom Optics) Quantum Mechanica January 15, 2013 1 / 22 Matrix methode Peter van der Straten (Atom Optics) Quantum Mechanica
More information