Hong Ou Mandel experiment with atoms
|
|
- Esmond Hicks
- 6 years ago
- Views:
Transcription
1 BEC on an MCP Hong Ou Mandel experiment with atoms Chris Westbrook Laboratoire Charles Fabry, Palaiseau FRISNO 13, Aussois 18 march 2015
2 2 particles at a beam splitter 1 particle at each input 4 possibilities: d a c b both transmitted both reflected both in c both in d
3 2 particles at a beam splitter 1 particle at each input 4 possibilities: d a c b both transmitted both reflected both in c both in d Hong Ou Mandel effect: only 2 possibilities
4 Hong, Ou and Mandel PRL 59, 2044 (1987) d c n c = n d 0 n c n d 0 HOM dip as a function of the overlap between the two arms.
5 2 classical wave packets φ a b d Id c Ic
6 2 classical wave packets Id 2.0 a d c Ic IcId φ b π φ
7 2 classical wave packets Id 2.0 a d c Ic IcId φ b π φ correlation function: g (2) Ic Id cd = φ = 1/2 overlapped Ic φ Id φ pulse delay g (2) cd =1 not overlapped (detector slower than pulse)
8 2 quantum fields at a beam splitter 1 particle at each input 4 QM amplitudes: d a c b both transmitted both reflected
9 2 quantum fields at a beam splitter 1 particle at each input 4 QM amplitudes: d a c b both transmitted both reflected G (2) cd = n c n d = 0 two particle interference has no classical analog
10 Why do it? It s cool... Tests single photon sources Metrology with twin Fock states Santori et al. Indistinguishable photons from a single-photon device Nature, 2002 (one quantum dot) Beugnon et al. Quantum interference between two single photons emitted by independently trapped atoms Nature, 2005
11 How to do it with atoms Essential features photon coincidence counting source of photon pairs mirrors, beam splitter spatial, spectral filters He*, MCP 4 wave mixing Bragg diffraction MCP
12 Get a good team Alain Aspect C I W Raphael Lopes Denis Boiron Marc Cheneau Pierre Dussarat Almazbek Imanaliev
13 Metastable Helium, He* E (ev) Lifetimes: 2 3 S1: 8000 s 2 3 PJ: 100 ns S0 2 3 P0,1, nm S1 deexcitation enables electronic detection: He* He + + e - microchannel plate and delay line anode spatial resolution ~250 µm q.e. > 25% S0 4 He (no nuclear spin)
14 Time of flight observation detectors in // record x,y,t for every detected atom get velocity distribution and correlation functions trap 46 cm detector there is also a laser trap
15 Time of flight observation detectors in // record x,y,t for every detected atom get velocity distribution and correlation functions trap 46 cm detector there is also a laser trap
16 Pair production: 4 wave mixing in a lattice dynamical instability: 2 k0 k1 + k2 lowest energy band Hillingsoe and Molmer, PRA 2005 Campbell et al. PRL 2006 Bonneau et al. PRA 2013
17 Pair production: 4 wave mixing in a lattice dynamical instability: 2 k0 k1 + k2 lowest energy band Hillingsoe and Molmer, PRA 2005 Campbell et al. PRL 2006 Bonneau et al. PRA 2013
18 Pair production: 4 wave mixing in a lattice dynamical instability: 2 k0 k1 + k2 lowest energy band Hillingsoe and Molmer, PRA 2005 Campbell et al. PRL 2006 Bonneau et al. PRA 2013
19 Bragg diffraction: mirror and beam splitter k1 k2 θ kbragg -1 Angle θ adjusted so that kbragg = k2 - k1 100 µs pulse : mirror 50 µs pulse : beam splitter
20 Experimental sequence a b position z a b time t1 t2 t3 t1 pair creation y z x t2 mirror exchanges ka and kb 45 cm c a c t2-t1 = 500 µs t3 beam splitter b d mixes 2 modes atoms fall to a c detector b d
21 Filtering Detected atom number v z (cm/s) a va vb b v z (cm/s) c Detected atom number small slice of the velocity distribution isolates one mode 0.8 atoms/ mode 0.2 detected v x (cm/s) v x (cm/s) 0.00
22 HOM correlation 0.08 G (2) cd = n c n d 0.06 coincidences per shot % contrast G (2) cd observed contrast is mostly due to multiple atoms ( s) ~10 hrs of data for each point delay: τ = t3-t2 n.b. t2-t1 = 500 µs Lopes et al. arxiv:
23 Other, non-optical experiments Atoms Kaufmann et al., Science 345, 306 (2014). Electrons Bocquillon et al., Science 339, 1054 (2013). Dubois et al., Nature 502, 659 (2013). Plasmons Fakonas et al., Nature Photonics 8, 317 (2014). Di Martino et al., Phys. Rev. Appl. 1, (2014) Microwaves Lang et al., Nature Phys, 9, 345 (2013).
24 2 particle interference in a double well Kaufmann et al., Science 345, 306 (2014)
25 Future Bell s inequalities without spin degrees of freedom k 1,q 1 + k 2,q 2 Lewis-Swann and Kheruntsyan Need to increase the repetition rate with low pair production (D. Clément: He* BEC in 7 s) with photons: Rarity and Tapster PRL 1990
26 Multiparticle interference with spins 2 mode squeezed state in the spin sector B. Lücke, et al «Twin Matter Waves for Interferometry Beyond the Classical Limit», Science, 334, p (2011). Do it in momentum space? Photonic version, Spasibko et al. NJ Phys 2014
27 Merci Merci
28 Interference contrast Two obvious causes for G (2) 0: 1. Lack of indistinguishibility i.e. imperfect spatial overlap 2. Occasional presence of more than 1 particle n.b. G (2) aa = a a aa = 0 for the 1,1 state We find Vmax = 0.6 ± 0.1. Data consistent with perfect indistinguishibility but extra particles in the state.
29 HOM peak? n c g (2) cd n c n d (µs)
30 Mean count rates... are roughly constant n c n d a b c 0.06 n c. n d 0.04 G (2) cd n c, n d ( s)
31 Variation of contrast with filter width a b 0.8 V v z (cm/s) v (cm/s)
32 Variance in the number difference V = h(n 1 N 2 ) 2 i hn 1 N 2 i 2 hn 1 + N 2 i N1, N2 ~ 100 Vmin ~ 0.75
33 4 wave mixing in a (moving) optical lattice Energy and quasi-momentum conservation 2k0 = k1+k2 2E0 = E1+E2 Interactions produce a dynamical instability for large k0 Hillingsoe and Molmer, PRA 2005 Campbell et al. PRL 2006 Bonneau et al. PRA 2013
34 A few characteristics Including mean field Final momenta can be chosen with k0 Turning lattice off stops interaction atom number can be controlled Bonneau et al. PRA 2013
35 Populations measured beam a P0 = 0.82 P1 = 0.16 P2 = beam b P0 = 0.9 P1 = P2 = we infer n depending on assumptions
36 A two mode squeezed state
37 Correlated atom pairs 0.05 krec Correlation function for back to back pairs g (2) (p, p+δp) Jaskula et al. PRL 2010
38 Microchannel Plate Single atom detection q.e. ~ 25%
39 Detector photos 8 cm Delay lines MCP + Delay lines
40 Four wave mixing of free atoms a.k.a. a collision H = â 1 â 2 â 3â 4 + h.c. energy and momentum conservation: k 1 + k 2 = k 3 + k 4 E 1 + E 2 = E 3 + E 4 restricts atoms to a spherical shell Perrin et al. PRL 2007
41 Detection MCP and delay line hole separation: 24 µm spatial resolution ~250 µm detectors in // q. e. for He* ~ 25% must be careful about saturation time differences give the position on MCP record x, y, t for each atom reconstruct momentum distribution
42 ! 4 wave mixing, seen in 3D
43 ! 4 wave mixing, seen in 3D
44 Other methods why look for alternatives? small occupation per mode ( ) not easily controlled relaxation of transverse excitations in BEC Bücker et al. Nat Phys (2011) modulation of speed of sound parametric downconversion of phonons (DCE) Jaskula et al. PRL (2012)
45 Wave particle duality single photon at a beam splitter (Grangier et al., EPL 1986) If we look for an anticorrelation, we find one n c n d = 0 : If we look for interference, we find it: Wave interpretation Particle interpretation HOM is more subtle because neither interpretation works.
46 Interference fringes from single photons (Grangier et al., EPL 1986)
47 Photon pairs A. Migdall, NIST ω 1, k 1 ω 2, k 2 parametric downconversion: 4 wave mixing: H ~ b a1 a2 + h.c. H ~ b1 b2 a1 a2 + h.c. These processes have led to Bell s inequality violations, squeezing, improvements in interferometry...
48 Hong Ou Mandel effect Start with 1 photon in each input 4 QM amplitudes: both transmitted both reflected 1st two amplitudes cancel, leaving: 2,0 + 0,2 average number in one output port N = 1 variance v = N 2 - N 2 = 1 v = 1/2 without interference normalized variance V = v/v = 2
49 Laser trap and detector position at detector gives initial velocity
Hong-Ou-Mandel effect with matter waves
Hong-Ou-Mandel effect with matter waves R. Lopes, A. Imanaliev, A. Aspect, M. Cheneau, DB, C. I. Westbrook Laboratoire Charles Fabry, Institut d Optique, CNRS, Univ Paris-Sud Progresses in quantum information
More informationQuantum atom optics with Bose-Einstein condensates
Quantum atom optics with Bose-Einstein condensates Piotr Deuar Institute of Physics, Polish Academy of Sciences, Warsaw, Poland With particular thanks to: Chris Westbrook, Denis Boiron, J-C Jaskula, Alain
More informationNonclassical atom pairs in collisions of BECs: from squeezing to Bell test proposals
Nonclassical atom pairs in collisions of BECs: from squeezing to Bell test proposals Piotr Deuar Institute of Physics, Polish Academy of Sciences, Warsaw, Poland With particular thanks to: Chris Westbrook,
More informationThe Hanbury Brown Twiss effect for matter waves. Chris Westbrook Laboratoire Charles Fabry, Palaiseau Workshop on HBT interferometry 12 may 2014
The Hanbury Brown Twiss effect for matter waves Chris Westbrook Laboratoire Charles Fabry, Palaiseau Workshop on HBT interferometry 12 may 2014 Outline: Hanbury Brown Twiss effect... 1.... in optics and
More informationAtomic Hong Ou Mandel experiment
Atomic Hong Ou Mandel experiment Raphael Lopes, Almazbek Imanaliev, Alain Aspect, Marc Cheneau, Denis Boiron, Christoph I Westbrook To cite this version: Raphael Lopes, Almazbek Imanaliev, Alain Aspect,
More informationCorrelated atom pairs in collisions of BECs: from nonclassical states to Bell test proposals
Correlated atom pairs in collisions of BECs: from nonclassical states to Bell test proposals Piotr Deuar Institute of Physics, Polish Academy of Sciences, Warsaw Experiment Chris Westbrook (Palaiaseau):
More informationThe Hanbury Brown and Twiss effect: from stars to cold atoms
Huntingdon and Broad Top Mountain RR The Hanbury Brown and Twiss effect: from stars to cold atoms Chris Westbrook Institute Optique, Palaiseau Toronto,18 November 2010 Outline 1. HB&T for light (stars
More informationChapter 2 Proposal for Demonstrating the Hong Ou Mandel Effect with Matter Waves
Chapter 2 Proposal for Demonstrating the Hong Ou Mandel Effect with Matter Waves Two-particle interference is a quintessential effect of quantum mechanics which is perhaps most beautifully demonstrated
More informationQuantum superpositions and correlations in coupled atomic-molecular BECs
Quantum superpositions and correlations in coupled atomic-molecular BECs Karén Kheruntsyan and Peter Drummond Department of Physics, University of Queensland, Brisbane, AUSTRALIA Quantum superpositions
More informationSingle Photon Generation & Application
Single Photon Generation & Application Photon Pair Generation: Parametric down conversion is a non-linear process, where a wave impinging on a nonlinear crystal creates two new light beams obeying energy
More informationFrequency and time... dispersion-cancellation, etc.
Frequency and time... dispersion-cancellation, etc. (AKA: An old experiment of mine whose interpretation helps illustrate this collapse-vs-correlation business, and which will serve as a segué into time
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 informationQuantum correlations and atomic speckle
Quantum correlations and atomic speckle S. S. Hodgman R. G. Dall A. G. Manning M. T. Johnsson K. G. H. Baldwin A. G. Truscott ARC Centre of Excellence for Quantum-Atom Optics, Research School of Physics
More informationJournal Club Presentation Quantum Information Science: Indistinguishable Photons from Separated Silicon-Vacancy Centers in Diamond [1]
. Journal Club Presentation Quantum Information Science: Indistinguishable Photons from Separated Silicon-Vacancy Centers in Diamond [1] Silvia Song Soorya Suresh Stella Sun University of Illinois Urbana-Champaign
More informationConfocal Microscopy Imaging of Single Emitter Fluorescence and Hanbury Brown and Twiss Photon Antibunching Setup
1 Confocal Microscopy Imaging of Single Emitter Fluorescence and Hanbury Brown and Twiss Photon Antibunching Setup Abstract Jacob Begis The purpose of this lab was to prove that a source of light can be
More informationQuantum Computing with neutral atoms and artificial ions
Quantum Computing with neutral atoms and artificial ions NIST, Gaithersburg: Carl Williams Paul Julienne T. C. Quantum Optics Group, Innsbruck: Peter Zoller Andrew Daley Uwe Dorner Peter Fedichev Peter
More informationErwin Schrödinger and his cat
Erwin Schrödinger and his cat How to relate discrete energy levels with Hamiltonian described in terms of continгous coordinate x and momentum p? Erwin Schrödinger (887-96) Acoustics: set of frequencies
More informationEE485 Introduction to Photonics
Pattern formed by fluorescence of quantum dots EE485 Introduction to Photonics Photon and Laser Basics 1. Photon properties 2. Laser basics 3. Characteristics of laser beams Reading: Pedrotti 3, Sec. 1.2,
More informationTesting The Existence of Single Photons
Testing The Existence of Single Photons Quynh Nguyen and Asad Khan Method of Experimental Physics Project, University of Minnesota. (Dated: 12 May 2014) We demonstrated the existence of single photon by
More informationDetection of Single Photon Emission by Hanbury-Brown Twiss Interferometry
Detection of Single Photon Emission by Hanbury-Brown Twiss Interferometry Greg Howland and Steven Bloch May 11, 009 Abstract We prepare a solution of nano-diamond particles on a glass microscope slide
More informationPath Entanglement. Liat Dovrat. Quantum Optics Seminar
Path Entanglement Liat Dovrat Quantum Optics Seminar March 2008 Lecture Outline Path entangled states. Generation of path entangled states. Characteristics of the entangled state: Super Resolution Beating
More informationJanuary 2010, Maynooth. Photons. Myungshik Kim.
January 2010, Maynooth Photons Myungshik Kim http://www.qteq.info Contents Einstein 1905 Einstein 1917 Hanbury Brown and Twiss Light quanta In 1900, Max Planck was working on black-body radiation and suggested
More informationAP/P387 Note2 Single- and entangled-photon sources
AP/P387 Note Single- and entangled-photon sources Single-photon sources Statistic property Experimental method for realization Quantum interference Optical quantum logic gate Entangled-photon sources Bell
More informationSingle photons. how to create them, how to see them. Alessandro Cerè
Single photons how to create them, how to see them Alessandro Cerè Intro light is quantum light is cheap let s use the quantum properties of light Little interaction with the environment We can send them
More informationSupplementary Materials for
wwwsciencemagorg/cgi/content/full/scienceaaa3035/dc1 Supplementary Materials for Spatially structured photons that travel in free space slower than the speed of light Daniel Giovannini, Jacquiline Romero,
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 informationFunctional quantum nodes for entanglement distribution
61 Chapter 4 Functional quantum nodes for entanglement distribution This chapter is largely based on ref. 36. Reference 36 refers to the then current literature in 2007 at the time of publication. 4.1
More informationA Guide to Experiments in Quantum Optics
Hans-A. Bachor and Timothy C. Ralph A Guide to Experiments in Quantum Optics Second, Revised and Enlarged Edition WILEY- VCH WILEY-VCH Verlag CmbH Co. KGaA Contents Preface 1 Introduction 1.1 Historical
More informationQuantum physics and the beam splitter mystery
Quantum physics and François Hénault Institut de Planétologie et d Astrophysique de Grenoble Université Joseph Fourier Centre National de la Recherche Scientifique BP 53, 384 Grenoble France Conf. 957
More informationQuantum and Nano Optics Laboratory. Jacob Begis Lab partners: Josh Rose, Edward Pei
Quantum and Nano Optics Laboratory Jacob Begis Lab partners: Josh Rose, Edward Pei Experiments to be Discussed Lab 1: Entanglement and Bell s Inequalities Lab 2: Single Photon Interference Labs 3 and 4:
More informationSingle-photon propagation through dielectric bandgaps
Single-photon propagation through dielectric bandgaps Natalia Borjemscaia, 1,2 * Sergey V. Polyakov, 2 Paul D. Lett, 2 and Alan Migdall 2 1 Department of Physics, Georgetown University, 37th and O Streets,
More informationarxiv: v1 [quant-ph] 24 Aug 2007
1 arxiv:0708.395v1 [quant-ph] 4 Aug 007 Recent progress on the manipulation of single atoms in optical tweezers for quantum computing A. Browaeys, J. Beugnon, C. Tuchendler, H. Marion, A. Gaëtan, Y. Miroshnychenko,
More informationUnconventional electron quantum optics in condensed matter systems
Unconventional electron quantum optics in condensed matter systems Dario Ferraro Centre de Physique Théorique, Marseille nanoqt-2016, Kyiv, October 10, 2016 In collaboration with: J. Rech, T. Jonckheere,
More informationRéunion erc. Gwendal Fève. Panel PE3 12 mn presentation 12 mn questions
Réunion erc Gwendal Fève Panel PE3 12 mn presentation 12 mn questions Electron quantum optics in quantum Hall edge channels Gwendal Fève Laboratoire Pierre Aigrain, Ecole Normale Supérieure-CNRS Professor
More informationarxiv:quant-ph/ v1 19 Aug 2005
arxiv:quant-ph/050846v 9 Aug 005 WITNESSING ENTANGLEMENT OF EPR STATES WITH SECOND-ORDER INTERFERENCE MAGDALENA STOBIŃSKA Instytut Fizyki Teoretycznej, Uniwersytet Warszawski, Warszawa 00 68, Poland magda.stobinska@fuw.edu.pl
More informationTowards quantum metrology with N00N states enabled by ensemble-cavity interaction. Massachusetts Institute of Technology
Towards quantum metrology with N00N states enabled by ensemble-cavity interaction Hao Zhang Monika Schleier-Smith Robert McConnell Jiazhong Hu Vladan Vuletic Massachusetts Institute of Technology MIT-Harvard
More informationarxiv:quant-ph/ v1 18 Oct 2006
Quantum interference between two single photons emitted by independently trapped atoms J. Beugnon 1, M. P. A. Jones 1, J. Dingjan 1, B. Darquié 1, G. Messin 1, A. Browaeys 1 & P. Grangier 1 1 Laboratoire
More informationHong-Ou-Mandel Interference
Hong-Ou-Mandel Interference Agata M. Brańczyk Perimeter Institute for Theoretical Physics, Waterloo, Ontario, NL Y5, Canada abranczyk@pitp.ca arxiv:1711.00080v1 [quant-ph] 31 Oct 017 This article is a
More informationIs the speed of light in free-space always c? Miles Padgett FRS Kelvin Chair of Natural Philosophy
Is the speed of light in free-space always c? Miles Padgett FRS Kelvin Chair of Natural Philosophy 1 What s the speed of light in free space? Always? The team www.physics.gla.ac.uk/optics Jacqui Romero
More informationHigh energy X-ray vortex generation using inverse Compton scattering
22nd International Spin Symposium 9/28/216 High energy X-ray vortex generation using inverse Compton scattering Yoshitaka Taira National Institute of Advanced Industrial Science and Technology (AIST),
More informationMatter wave interferometry beyond classical limits
Max-Planck-Institut für Quantenoptik Varenna school on Atom Interferometry, 15.07.2013-20.07.2013 The Plan Lecture 1 (Wednesday): Quantum noise in interferometry and Spin Squeezing Lecture 2 (Friday):
More informationLab 3-4 : Confocal Microscope Imaging of Single-Emitter Fluorescence and Hanbury-Brown and Twiss Set Up, Photon Antibunching
Lab 3-4 : Confocal Microscope Imaging of Single-Emitter Fluorescence and Hanbury-Brown and Twiss Set Up, Photon Antibunching Mongkol Moongweluwan 1 1 Department of Physics and Astronomy, University of
More informationDirect observation of quantum phonon fluctuations in ultracold 1D Bose gases
Laboratoire Charles Fabry, Palaiseau, France Atom Optics Group (Prof. A. Aspect) Direct observation of quantum phonon fluctuations in ultracold 1D Bose gases Julien Armijo* * Now at Facultad de ciencias,
More informationarxiv: v2 [quant-ph] 29 May 2017
Complementarity Analysis of Interference between Frequency-Displaced Photonic Wave-Packets arxiv:1701.08103v2 [quant-ph] 29 May 2017 Gustavo C. Amaral, Elisa F. Carneiro, Guilherme P. Temporão and Jean
More informationBogoliubov quantum dynamics at T>=0 (even without a condensate)
Bogoliubov quantum dynamics at T>=0 (even without a condensate) Piotr Deuar Institute of Physics, Polish Academy of Sciences, Warsaw 1. Supersonic pair creation 2. Palaiseau BEC collision experiment 3.
More informationarxiv: v1 [physics.optics] 12 Feb 2013
Characterization of a Quantum Light Source Based on Spontaneous Parametric Down-Conversion Thomas J. Huisman, Simon R. Huisman, Allard P. Mosk, Pepijn W.H. Pinkse MESA+ Institute for Nanotechnology, University
More informationMeasuring Entanglement Entropy in Synthetic Matter
Measuring Entanglement Entropy in Synthetic Matter Markus Greiner Harvard University H A R V A R D U N I V E R S I T Y M I T CENTER FOR ULTRACOLD ATOMS Ultracold atom synthetic quantum matter: First Principles
More informationQuantum Optical Coherence Tomography
Quantum Optical Coherence Tomography Bahaa Saleh Alexander Sergienko Malvin Teich Quantum Imaging Lab Department of Electrical & Computer Engineering & Photonics Center QuickTime and a TIFF (Uncompressed)
More informationSupplementary Figure 1 Comparison of single quantum emitters on two type of substrates:
Supplementary Figure 1 Comparison of single quantum emitters on two type of substrates: a, Photoluminescence (PL) spectrum of localized excitons in a WSe 2 monolayer, exfoliated onto a SiO 2 /Si substrate
More informationPreselection with Certainty of Photons in a Singlet State from a. Set of Independent Photons
1 International Journal of Theoretical Physics, 34, 1653 1665 (1995) Preselection with Certainty of Photons in a Singlet State from a Set of Independent Photons Mladen Pavičić 1 It is shown that one can
More informationATOMIC AND LASER SPECTROSCOPY
ALAN CORNEY ATOMIC AND LASER SPECTROSCOPY CLARENDON PRESS OXFORD 1977 Contents 1. INTRODUCTION 1.1. Planck's radiation law. 1 1.2. The photoelectric effect 4 1.3. Early atomic spectroscopy 5 1.4. The postulates
More informationFundamental of Spectroscopy for Optical Remote Sensing Xinzhao Chu I 10 3.4. Principle of Uncertainty Indeterminacy 0. Expression of Heisenberg s Principle of Uncertainty It is worth to point out that
More informationarxiv:quant-ph/ v2 5 Apr 2005
Experimental Demonstration of a Quantum Circuit using Linear Optics Gates T.B. Pittman, B.C Jacobs, and J.D. Franson Johns Hopkins University, Applied Physics Laboratory, Laurel, MD 2723 (Dated: April
More informationSupplementary Materials for
advances.sciencemag.org/cgi/content/full/2//e50054/dc Supplementary Materials for Two-photon quantum walk in a multimode fiber Hugo Defienne, Marco Barbieri, Ian A. Walmsley, Brian J. Smith, Sylvain Gigan
More informationCavity Quantum Electrodynamics Lecture 2: entanglement engineering with quantum gates
DÉPARTEMENT DE PHYSIQUE DE L ÉCOLE NORMALE SUPÉRIEURE LABORATOIRE KASTLER BROSSEL Cavity Quantum Electrodynamics Lecture : entanglement engineering with quantum gates Michel BRUNE Les Houches 003 1 CQED
More informationViolation of Bell Inequalities
Violation of Bell Inequalities Philipp Kurpiers and Anna Stockklauser 5/12/2011 Quantum Systems for Information Technology Einstein-Podolsky-Rosen paradox (1935) Goal: prove that quantum mechanics is incomplete
More informationMeasuring entanglement in synthetic quantum systems
Measuring entanglement in synthetic quantum systems ψ?? ψ K. Rajibul Islam Institute for Quantum Computing and Department of Physics and Astronomy University of Waterloo research.iqc.uwaterloo.ca/qiti/
More informationPlaying Games with Quantum Information: Experiments with Photons and Laser-Cooled Atoms
Playing Games with Quantum Information: Experiments with Photons and Laser-Cooled Atoms Interns: Grad Students: Postdocs: Supervisor: Jeff Lundeen Univ. of Toronto Dept. of Physics CAP 2003 Rockson Chang,
More informationSolid-state quantum communications and quantum computation based on single quantum-dot spin in optical microcavities
CQIQC-V -6 August, 03 Toronto Solid-state quantum communications and quantum computation based on single quantum-dot spin in optical microcavities Chengyong Hu and John G. Rarity Electrical & Electronic
More informationROTONS AND STRIPES IN SPIN-ORBIT COUPLED BECs
INT Seattle 5 March 5 ROTONS AND STRIPES IN SPIN-ORBIT COUPLED BECs Yun Li, Giovanni Martone, Lev Pitaevskii and Sandro Stringari University of Trento CNR-INO Now in Swinburne Now in Bari Stimulating discussions
More informationWhere are the Fringes? (in a real system) Div. of Amplitude - Wedged Plates. Fringe Localisation Double Slit. Fringe Localisation Grating
Where are the Fringes? (in a real system) Fringe Localisation Double Slit spatial modulation transverse fringes? everywhere or well localised? affected by source properties: coherence, extension Plane
More informationQuantum Memory with Atomic Ensembles
Lecture Note 5 Quantum Memory with Atomic Ensembles 04.06.2008 Difficulties in Long-distance Quantum Communication Problems leads Solutions Absorption (exponentially) Decoherence Photon loss Degrading
More informationInfluence of hyperfine interaction on optical orientation in self-assembled InAs/GaAs quantum dots
Influence of hyperfine interaction on optical orientation in self-assembled InAs/GaAs quantum dots O. Krebs, B. Eble (PhD), S. Laurent (PhD), K. Kowalik (PhD) A. Kudelski, A. Lemaître, and P. Voisin Laboratoire
More informationQuantum Entanglement and Bell s Inequalities Zachary Evans, Joel Howard, Jahnavi Iyer, Ava Dong, and Maggie Han
Quantum Entanglement and Bell s Inequalities Zachary Evans, Joel Howard, Jahnavi Iyer, Ava Dong, and Maggie Han Institute of Optics, University of Rochester Opt 101 Meeting, December 4, 2012, Rochester
More informationMetal Vapour Lasers Use vapoured metal as a gain medium Developed by W. Silfvast (1966) Two types: Ionized Metal vapour (He-Cd) Neutral Metal vapour
Metal Vapour Lasers Use vapoured metal as a gain medium Developed by W. Silfvast (1966) Two types: Ionized Metal vapour (He-Cd) Neutral Metal vapour (Cu) All operate by vaporizing metal in container Helium
More informationSpatial coherence effects on second- and fourth-order temporal interference
Spatial coherence effects on second- and fourth-order temporal interference Timothy Yarnall 1,, Ayman F. Abouraddy 3, Bahaa E. A. Saleh, and Malvin C. Teich 1 Lincoln Laboratory, Massachusetts Institute
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 information5.74 Introductory Quantum Mechanics II
MIT OpenCourseWare http://ocw.mit.edu 5.74 Introductory Quantum Mechanics II Spring 2009 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. p. 10-0 10..
More information1 Photoelectric effect - Classical treatment. 2 Photoelectric effect - Quantum treatment
1 OF 5 NOTE: This problem set is to be handed in to my mail slot (SMITH) located in the Clarendon Laboratory by 5:00 PM Tuesday, 10 May. 1 Photoelectric effect - Classical treatment A laser beam with an
More informationA new experimental apparatus for quantum atom optics
A new experimental apparatus for quantum atom optics Andreas Hüper, Jiao Geng, Ilka Kruse, Jan Mahnke, Wolfgang Ertmer and Carsten Klempt Institut für Quantenoptik, Leibniz Universität Hannover Outline
More informationLearning about order from noise
Learning about order from noise Quantum noise studies of ultracold atoms Eugene Demler Harvard University Collaborators: Ehud Altman, Robert Cherng, Adilet Imambekov, Vladimir Gritsev, Mikhail Lukin, Anatoli
More informationnm are produced. When the condition for degenerate
VOLUME 61, NUMBER 1 PHYSCAL REVEW LETTERS 4 JULY 1988 Violation of Bells nequality and Classical Probability in a Two-Photon Correlation Experiment Z. Y. Ou and L. Mandel Department of Physics and Astronomy,
More informationle LPTMS en Bretagne... photo extraite du site
le LPTMS en Bretagne... 1 photo extraite du site http://www.chateau-du-val.com le LPTMS en Bretagne... 1 2 Quantum signature of analog Hawking radiation in momentum space Nicolas Pavloff LPTMS, CNRS, Univ.
More informationContent of the lectures
Content of the lectures Lecture 1 Introduction to quantum noise, squeezed light and entanglement generation Quantization of light, Continuous-variable, Homodyne detection, Gaussian states, Optical parametric
More informationQuantum information processing with individual neutral atoms in optical tweezers. Philippe Grangier. Institut d Optique, Palaiseau, France
Quantum information processing with individual neutral atoms in optical tweezers Philippe Grangier Institut d Optique, Palaiseau, France Outline Yesterday s lectures : 1. Trapping and exciting single atoms
More informationDifferential Phase Shift Quantum Key Distribution and Beyond
Differential Phase Shift Quantum Key Distribution and Beyond Yoshihisa Yamamoto E. L. Ginzton Laboratory, Stanford University National Institute of Informatics (Tokyo, Japan) DPS-QKD system Protocol System
More informationDetecting high energy photons. Interactions of photons with matter Properties of detectors (with examples)
Detecting high energy photons Interactions of photons with matter Properties of detectors (with examples) Interactions of high energy photons with matter Cross section/attenution length/optical depth Photoelectric
More informationComparing quantum and classical correlations in a quantum eraser
Comparing quantum and classical correlations in a quantum eraser A. Gogo, W. D. Snyder, and M. Beck* Department of Physics, Whitman College, Walla Walla, Washington 99362, USA Received 14 February 2005;
More information.O. Demokritov niversität Münster, Germany
Quantum Thermodynamics of Magnons.O. Demokritov niversität Münster, Germany Magnon Frequency Population BEC-condensates http://www.uni-muenster.de/physik/ap/demokritov/ k z k y Group of NonLinea Magnetic
More informationLab 1 Entanglement and Bell s Inequalities
Quantum Optics Lab Review Justin Winkler Lab 1 Entanglement and Bell s Inequalities Entanglement Wave-functions are non-separable Measurement of state of one particle alters the state of the other particle
More informationEPR correlations, Bell s theorem, and entanglement at a distance: the naive view of an experimentalist
EPR correlations, Bell s theorem, and entanglement at a distance: the naive view of an experimentalist KITP, May 19, 004 Alain Aspect Laboratoire Charles Fabry de l Institut d Optique http://atomoptic.iota.u-psud.fr
More informationSingle-photon NV sources. Pauli Kehayias March 16, 2011
Single-photon NV sources 1 Outline Quantum nature of light Photon correlation functions Single-photon sources NV diamond single-photon sources 2 Wave/particle duality Light exhibits wave and particle properties
More informationarxiv: v1 [quant-ph] 1 Nov 2012
On the Purity and Indistinguishability of Down-Converted Photons arxiv:111.010v1 [quant-ph] 1 Nov 01 C. I. Osorio, N. Sangouard, and R. T. Thew Group of Applied Physics, University of Geneva, 111 Geneva
More information0.5 atoms improve the clock signal of 10,000 atoms
0.5 atoms improve the clock signal of 10,000 atoms I. Kruse 1, J. Peise 1, K. Lange 1, B. Lücke 1, L. Pezzè 2, W. Ertmer 1, L. Santos 3, A. Smerzi 2, C. Klempt 1 1 Institut für Quantenoptik, Leibniz Universität
More informationBose-Einstein condensates (Fock states): classical or quantum?
Bose-Einstein condensates (Fock states): classical or quantum? Does the phase of Bose-Einstein condensates exist before measurement? Quantum non-locality, macroscopic superpositions (QIMDS experiments))
More informationSupplementary Figures
Supplementary Figures Supplementary Figure. X-ray diffraction pattern of CH 3 NH 3 PbI 3 film. Strong reflections of the () family of planes is characteristics of the preferred orientation of the perovskite
More informationQuantum op*cs. Chris Westbrook Antoine Browaeys
Quantum op*cs Chris Westbrook Antoine Browaeys Important phenomena that CANNOT be explained classically Discovered before 1945 Discovered acer 1945 Spectum of blackbody radia;on Photo-electric effect Spontaneous
More informationPHYS 4 CONCEPT PACKET Complete
PHYS 4 CONCEPT PACKET Complete Written by Jeremy Robinson, Head Instructor Find Out More +Private Instruction +Review Sessions WWW.GRADEPEAK.COM Need Help? Online Private Instruction Anytime, Anywhere
More informationLectures on Quantum Optics and Quantum Information
Lectures on Quantum Optics and Quantum Information Julien Laurat Laboratoire Kastler Brossel, Paris Université P. et M. Curie Ecole Normale Supérieure and CNRS julien.laurat@upmc.fr Taiwan-France joint
More information(b) Spontaneous emission. Absorption, spontaneous (random photon) emission and stimulated emission.
Lecture 10 Stimulated Emission Devices Lasers Stimulated emission and light amplification Einstein coefficients Optical fiber amplifiers Gas laser and He-Ne Laser The output spectrum of a gas laser Laser
More informationTwo-photon double-slit interference experiment
1192 J. Opt. Soc. Am. B/Vol. 15, No. 3/March 1998 C. K. Hong and T. G. Noh Two-photon double-slit interference experiment C. K. Hong and T. G. Noh Department of Physics, Pohang University of Science and
More informationLaboratory 3: Confocal Microscopy Imaging of Single Emitter Fluorescence and Hanbury Brown, and Twiss Setup for Photon Antibunching
Laboratory 3: Confocal Microscopy Imaging of Single Emitter Fluorescence and Hanbury Brown, and Twiss Setup for Photon Antibunching Jonathan Papa 1, * 1 Institute of Optics University of Rochester, Rochester,
More informationElements of Quantum Optics
Pierre Meystre Murray Sargent III Elements of Quantum Optics Fourth Edition With 124 Figures fya Springer Contents 1 Classical Electromagnetic Fields 1 1.1 Maxwell's Equations in a Vacuum 2 1.2 Maxwell's
More informationMultimode Entanglement in. Continuous Variables
Multimode Entanglement in Continuous Variables Entanglement with continuous variables What are we measuring? How are we measuring it? Why are we using the Optical Parametric Oscillator? What do we learn?
More informationAn Overview of Advanced LIGO Interferometry
An Overview of Advanced LIGO Interferometry Luca Matone Columbia Experimental Gravity group (GECo) Jul 16-20, 2012 LIGO-G1200743 Day Topic References 1 2 3 4 5 Gravitational Waves, Michelson IFO, Fabry-Perot
More informationContribution of the Hanbury Brown Twiss experiment to the development of quantum optics
Contribution of the Hanbury Brown Twiss experiment to the development of quantum optics Kis Zsolt Kvantumoptikai és Kvantuminformatikai Osztály MTA Wigner Fizikai Kutatóközpont H-1121 Budapest, Konkoly-Thege
More informationQuantum noise studies of ultracold atoms
Quantum noise studies of ultracold atoms Eugene Demler Harvard University Collaborators: Ehud Altman, Robert Cherng, Adilet Imambekov, Vladimir Gritsev, Mikhail Lukin, Anatoli Polkovnikov Funded by NSF,
More informationExploring long-range interacting quantum many-body systems with Rydberg atoms
Exploring long-range interacting quantum many-body systems with Rydberg atoms Christian Groß Max-Planck-Institut für Quantenoptik Hannover, November 2015 Motivation: Quantum simulation Idea: Mimicking
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 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 information