Fabio Chiarello IFN-CNR Rome, Italy
|
|
- Gervais Conley
- 5 years ago
- Views:
Transcription
1 Italian National Research Council Institute for Photonics and Nanotechnologies Elettronica quantistica con dispositivi Josephson: dagli effetti quantistici macroscopici al qubit Fabio Chiarello IFN-CNR Rome, Italy "Effetto Josephson: in memoria di Antonio Barone Conferenza SIF, Napoli, 21/9/2012 ifn.cnr.it SIF Conference, Effetto Josephson: in memoria di Antonio Barone, Sep. 2012
2 Josephson effect Two superconducting electrodes separated by a thin insulating barrier L i L Le R i R Re Josephson s equations V VR VL R L Symbol
3 Realistic Josephson junction model RCSJ model I Mechanical equivalent du M M d U I b I0 bcos H 2 p 2M U M C b 1/ RC p M CV b
4 JJ potential JJ potential U I b I0 bcos I Inclination Modulation For different current biases:
5 Population of state 1> Josephson junction as an artificial atom Anharmonic potential: JJ used as an Artificial atom Manipulated by microwave pulses, using NMR techniques - Qubit for Quantum computing I mw mw John M. Martinis et al., 2002 J. Lisenfeld et al., 2007
6 rf SQUID Potential Rf SQUID scheme Potential shape parabola + cosine Flux Symmetric double well for Hamiltonian ( is an equivalent position ) Kinetic energy Potential Unbalancing controlled by x
7 dc SQUID Small superconducting loop interrupted by two identical JJs i 0, C 0 i 0, C 0 l I 0, C For behaves approximately like a single junction with:
8 Double SQUID rf SQUID with the single JJ replaced by a dc SQUID Unbalancing controlled by x Barrier height controlled by c
9 Gradiometricity Flux bias c Different samples: CNR, VTT, PTB, Hypres, MIT Typical: L=85pH, l=5ph, J=8mA, C=0.35pF 1/100 coupling Flux bias x Readout SQUID Junctions 100mm 1 m 0 discrimination
10 double SQUID characteristics
11 Manipulation with flux pulses State preparation:?? Phase rotation: e Population rotation: W
12 Manipulation and readout of the double SQUID state S. Poletto et al., NJP 11, (2009) M. G. Castellano et al., NJP 12, (2010)
13 Observation of coherent oscillations Experimental observation of coherent oscillations (at 30mK) Nb/AlOx/Nb standard technology (Hypres, MIT) Dt - High oscillation frequency: 10GHz 22GHz (new result: up to 60GHz!) - Large number of visible oscillations (~200) S. Poletto, F. Chiarello, M. G. Castellano, et al., New J. Phys. 11, (2009)
14 Oscillations for different pulse heights - Oscillation frequency tuned by c (in the single well case) c
15 Decay times Decay time t*: time necessary to reduce the oscillations amplitude to 1/e=0.368 t* Optimal point
16 Decay shapes The decay shape changes with the oscillation frequency F Chiarello, E Paladino et Al., NJP GHz 20.9GHz This behavior is explained by noise dominated by low frequency components
17 Adiabaticity Required Landau-Zener transitions between levels 0 1 (avoiding transitions to upper levels...) c pulse with risetime t R t R t R Populations for different risetimes (simulation): t R = 3.2ns t R = 1ns t R = 0.32ns t R = 0.1ns t time s 0 t time s 0 t time s 0 t time s Increasing rates upper (unwanted) levels involved
18 Adiabaticity For the sudy of adiabaticity used just one part of the complete manipulation: 1. Single well, only fundamental level populated initially 2. Fast transition, single double well t R?? The result depends on the unbalancing: S-shape curve
19 Peaks
20 Resonant activation Presence of peaks: resonances between left-righ levels t R =1.34ns t R =1.14ns
21 Risetime/flux pattern - Test on the capability to tune up the adiabaticity - Interesting quantum effect, based on Landau-Zener and Resonant Activation
22 Coupling of double SQUID qubits Coupling of qubits Coupling of two qubits by a superconducting transformer Switchable Coupling of two qubits by a tunable superconducting transformer M. G. Castellano et al, App. Phys. Lett. 86, (2005)
23 Coupling schemes Coherent bus Neural network XOR of input signals Experimental results (incoherent regime, T = 4.2K)
24 SQUID neural network Errors (%) Squares Circles = examples = real results after learning Training (genetic algorithm) Generation
25 Conclusions double SQUID manipulated by fast pulses very high operation frequency (up to 60GHz): a lot of operation possible in short coherence time problem: subnanosecond electronics... Decoherence mechanisms Main decoherence source: low frequency fluctuations Transition between two distinc regimes Probe of the noise features Tests on adiabaticity Possibility to verify the correct operation of the qubit Presence of resonance peaks: combined effect of Landau-Zener transitions and resonant activation
Superconducting Qubits
Superconducting Qubits Fabio Chiarello Institute for Photonics and Nanotechnologies IFN CNR Rome Lego bricks The Josephson s Lego bricks box Josephson junction Phase difference Josephson equations Insulating
More informationFinal Report. Superconducting Qubits for Quantum Computation Contract MDA C-A821/0000
Final Report Superconducting Qubits for Quantum Computation Contract MDA904-98-C-A821/0000 Project Director: Prof. J. Lukens Co-project Director: Prof. D. Averin Co-project Director: Prof. K. Likharev
More informationExploring parasitic Material Defects with superconducting Qubits
Exploring parasitic Material Defects with superconducting Qubits Jürgen Lisenfeld, Alexander Bilmes, Georg Weiss, and A.V. Ustinov Physikalisches Institut, Karlsruhe Institute of Technology, Karlsruhe,
More informationnano Josephson junctions Quantum dynamics in
Permanent: Wiebke Guichard Olivier Buisson Frank Hekking Laurent Lévy Cécile Naud Bernard Pannetier Quantum dynamics in nano Josephson junctions CNRS Université Joseph Fourier Institut Néel- LP2MC GRENOBLE
More informationDynamical Casimir effect in superconducting circuits
Dynamical Casimir effect in superconducting circuits Dynamical Casimir effect in a superconducting coplanar waveguide Phys. Rev. Lett. 103, 147003 (2009) Dynamical Casimir effect in superconducting microwave
More informationLecture 9 Superconducting qubits Ref: Clarke and Wilhelm, Nature 453, 1031 (2008).
Lecture 9 Superconducting qubits Ref: Clarke and Wilhelm, Nature 453, 1031 (2008). Newcomer in the quantum computation area ( 2000, following experimental demonstration of coherence in charge + flux qubits).
More informationCoherent oscillations in a charge qubit
Coherent oscillations in a charge qubit The qubit The read-out Characterization of the Cooper pair box Coherent oscillations Measurements of relaxation and decoherence times Tim Duty, Kevin Bladh, David
More informationSupercondcting Qubits
Supercondcting Qubits Patricia Thrasher University of Washington, Seattle, Washington 98195 Superconducting qubits are electrical circuits based on the Josephson tunnel junctions and have the ability to
More informationRealization and test of an Artificial Neural Network based on Superconducting Quantum Interference Devices
Realization and test of an Artificial Neural Network based on Superconducting Quantum Interference Devices Chiarello F 1, Carelli P 2, Castellano M G 1, Torrioli G 1 1 IFN-CNR, via Cineto Romano 42, 00156
More informationSuperconducting Flux Qubits: The state of the field
Superconducting Flux Qubits: The state of the field S. Gildert Condensed Matter Physics Research (Quantum Devices Group) University of Birmingham, UK Outline A brief introduction to the Superconducting
More informationStrong tunable coupling between a charge and a phase qubit
Strong tunable coupling between a charge and a phase qubit Wiebke Guichard Olivier Buisson Frank Hekking Laurent Lévy Bernard Pannetier Aurélien Fay Ioan Pop Florent Lecocq Rapaël Léone Nicolas Didier
More informationSuperconducting Qubits. Nathan Kurz PHYS January 2007
Superconducting Qubits Nathan Kurz PHYS 576 19 January 2007 Outline How do we get macroscopic quantum behavior out of a many-electron system? The basic building block the Josephson junction, how do we
More informationSuperconducting quantum bits. Péter Makk
Superconducting quantum bits Péter Makk Qubits Qubit = quantum mechanical two level system DiVincenzo criteria for quantum computation: 1. Register of 2-level systems (qubits), n = 2 N states: eg. 101..01>
More informationNon-linear driving and Entanglement of a quantum bit with a quantum readout
Non-linear driving and Entanglement of a quantum bit with a quantum readout Irinel Chiorescu Delft University of Technology Quantum Transport group Prof. J.E. Mooij Kees Harmans Flux-qubit team visitors
More informationSynthesizing arbitrary photon states in a superconducting resonator
Synthesizing arbitrary photon states in a superconducting resonator Max Hofheinz, Haohua Wang, Markus Ansmann, R. Bialczak, E. Lucero, M. Neeley, A. O Connell, D. Sank, M. Weides, J. Wenner, J.M. Martinis,
More informationINTRODUCTION TO SUPERCONDUCTING QUBITS AND QUANTUM EXPERIENCE: A 5-QUBIT QUANTUM PROCESSOR IN THE CLOUD
INTRODUCTION TO SUPERCONDUCTING QUBITS AND QUANTUM EXPERIENCE: A 5-QUBIT QUANTUM PROCESSOR IN THE CLOUD Hanhee Paik IBM Quantum Computing Group IBM T. J. Watson Research Center, Yorktown Heights, NY USA
More informationSuperconducting Qubits Coupling Superconducting Qubits Via a Cavity Bus
Superconducting Qubits Coupling Superconducting Qubits Via a Cavity Bus Leon Stolpmann, Micro- and Nanosystems Efe Büyüközer, Micro- and Nanosystems Outline 1. 2. 3. 4. 5. Introduction Physical system
More informationCircuit Quantum Electrodynamics. Mark David Jenkins Martes cúantico, February 25th, 2014
Circuit Quantum Electrodynamics Mark David Jenkins Martes cúantico, February 25th, 2014 Introduction Theory details Strong coupling experiment Cavity quantum electrodynamics for superconducting electrical
More informationDemonstration of conditional gate operation using superconducting charge qubits
Demonstration of conditional gate operation using superconducting charge qubits T. Yamamoto, Yu. A. Pashkin, * O. Astafiev, Y. Nakamura, & J. S. Tsai NEC Fundamental Research Laboratories, Tsukuba, Ibaraki
More informationIntroduction to Superconductivity. Superconductivity was discovered in 1911 by Kamerlingh Onnes. Zero electrical resistance
Introduction to Superconductivity Superconductivity was discovered in 1911 by Kamerlingh Onnes. Zero electrical resistance Meissner Effect Magnetic field expelled. Superconducting surface current ensures
More informationDispersive Readout, Rabi- and Ramsey-Measurements for Superconducting Qubits
Dispersive Readout, Rabi- and Ramsey-Measurements for Superconducting Qubits QIP II (FS 2018) Student presentation by Can Knaut Can Knaut 12.03.2018 1 Agenda I. Cavity Quantum Electrodynamics and the Jaynes
More informationMetastable states in an RF driven Josephson oscillator
Metastable states in an RF driven Josephson oscillator R. VIJAYARAGHAVAN Daniel Prober Robert Schoelkopf Steve Girvin Department of Applied Physics Yale University 3-16-2006 APS March Meeting I. Siddiqi
More informationM.C. Escher. Angels and devils (detail), 1941
M.C. Escher Angels and devils (detail), 1941 1 Coherent Quantum Phase Slip: Exact quantum dual to Josephson Tunneling (Coulomb blockade is a partial dual) Degree of freedom in superconductor: Phase and
More informationSuperconducting Resonators and Their Applications in Quantum Engineering
Superconducting Resonators and Their Applications in Quantum Engineering Nov. 2009 Lin Tian University of California, Merced & KITP Collaborators: Kurt Jacobs (U Mass, Boston) Raymond Simmonds (Boulder)
More informationQIC 890/891, Module 4: Microwave Parametric Amplification in Superconducting Qubit Readout experiments
QIC 890/891, Module 4: Microwave Parametric Amplification in Superconducting Qubit Readout experiments 1 Instructor: Daryoush Shiri Postdoctoral fellow, IQC IQC, June 2015, WEEK-2 2 Parametric Amplifiers
More informationEntangled Macroscopic Quantum States in Two Superconducting Qubits
Entangled Macroscopic Quantum States in Two Superconducting Qubits A. J. Berkley,H. Xu, R. C. Ramos, M. A. Gubrud, F. W. Strauch, P. R. Johnson, J. R. Anderson, A. J. Dragt, C. J. Lobb, F. C. Wellstood
More informationTheory for investigating the dynamical Casimir effect in superconducting circuits
Theory for investigating the dynamical Casimir effect in superconducting circuits Göran Johansson Chalmers University of Technology Gothenburg, Sweden International Workshop on Dynamical Casimir Effect
More informationDriving Qubit Transitions in J-C Hamiltonian
Qubit Control Driving Qubit Transitions in J-C Hamiltonian Hamiltonian for microwave drive Unitary transform with and Results in dispersive approximation up to 2 nd order in g Drive induces Rabi oscillations
More information10.5 Circuit quantum electrodynamics
AS-Chap. 10-1 10.5 Circuit quantum electrodynamics AS-Chap. 10-2 Analogy to quantum optics Superconducting quantum circuits (SQC) Nonlinear circuits Qubits, multilevel systems Linear circuits Waveguides,
More informationQuantum simulation with superconducting circuits
Quantum simulation with superconducting circuits Summary: introduction to quantum simulation with superconducting circuits: quantum metamaterials, qubits, resonators motional averaging/narrowing: theoretical
More informationMechanical quantum resonators
Mechanical quantum resonators A. N. Cleland and M. R. Geller Department of Physics, University of California, Santa Barbara CA 93106 USA Department of Physics and Astronomy, University of Georgia, Athens,
More informationQuantum computation with superconducting qubits
Quantum computation with superconducting qubits Project for course: Quantum Information Ognjen Malkoc June 10, 2013 1 Introduction 2 Josephson junction 3 Superconducting qubits 4 Circuit and Cavity QED
More informationHybrid Quantum Circuit with a Superconducting Qubit coupled to a Spin Ensemble
Hybrid Quantum Circuit with a Superconducting Qubit coupled to a Spin Ensemble, Cécile GREZES, Andreas DEWES, Denis VION, Daniel ESTEVE, & Patrice BERTET Quantronics Group, SPEC, CEA- Saclay Collaborating
More informationQuantum Optics with Propagating Microwaves in Superconducting Circuits. Io-Chun Hoi 許耀銓
Quantum Optics with Propagating Microwaves in Superconducting Circuits 許耀銓 Outline Motivation: Quantum network Introduction to superconducting circuits Quantum nodes The single-photon router The cross-kerr
More informationSuperconducting qubits (Phase qubit) Quantum informatics (FKA 172)
Superconducting qubits (Phase qubit) Quantum informatics (FKA 172) Thilo Bauch (bauch@chalmers.se) Quantum Device Physics Laboratory, MC2, Chalmers University of Technology Qubit proposals for implementing
More informationSupplementary information for Quantum delayed-choice experiment with a beam splitter in a quantum superposition
Supplementary information for Quantum delayed-choice experiment with a beam splitter in a quantum superposition Shi-Biao Zheng 1, You-Peng Zhong 2, Kai Xu 2, Qi-Jue Wang 2, H. Wang 2, Li-Tuo Shen 1, Chui-Ping
More informationJosephson phase qubit circuit for the evaluation of advanced tunnel barrier materials *
Qubit circuit for advanced materials evaluation 1 Josephson phase qubit circuit for the evaluation of advanced tunnel barrier materials * Jeffrey S Kline, 1 Haohua Wang, 2 Seongshik Oh, 1 John M Martinis
More information10.5 Circuit quantum electrodynamics
AS-Chap. 10-1 10.5 Circuit quantum electrodynamics AS-Chap. 10-2 Analogy to quantum optics Superconducting quantum circuits (SQC) Nonlinear circuits Qubits, multilevel systems Linear circuits Waveguides,
More informationSuperconducting Circuits and Quantum Information
Superconducting Circuits and Quantum Information Superconducting circuits can behave like atoms making transitions between two levels. Such circuits can test quantum mechanics at macroscopic scales and
More informationSuperconducting phase qubits
Quantum Inf Process (2009) 8:81 103 DOI 10.1007/s11128-009-0105-1 Superconducting phase qubits John M. Martinis Published online: 18 February 2009 The Author(s) 2009. This article is published with open
More information2015 AMO Summer School. Quantum Optics with Propagating Microwaves in Superconducting Circuits I. Io-Chun, Hoi
2015 AMO Summer School Quantum Optics with Propagating Microwaves in Superconducting Circuits I Io-Chun, Hoi Outline 1. Introduction to quantum electrical circuits 2. Introduction to superconducting artificial
More informationDissipation in Transmon
Dissipation in Transmon Muqing Xu, Exchange in, ETH, Tsinghua University Muqing Xu 8 April 2016 1 Highlight The large E J /E C ratio and the low energy dispersion contribute to Transmon s most significant
More informationMeasuring heat current and its fluctuations in superconducting quantum circuits
Measuring heat current and its fluctuations in superconducting quantum circuits Bayan Karimi QTF Centre of Excellence, Department of Applied Physics, Aalto University, Finland Supervisor: Jukka P. Pekola
More informationDecoherence in Josephson-junction qubits due to critical-current fluctuations
PHYSICAL REVIEW B 70, 064517 (2004) Decoherence in Josephson-junction qubits due to critical-current fluctuations D. J. Van Harlingen, 1 T. L. Robertson, 2 B. L. T. Plourde, 2 P. A. Reichardt, 2 T. A.
More informationTopologicaly protected abelian Josephson qubits: theory and experiment.
Topologicaly protected abelian Josephson qubits: theory and experiment. B. Doucot (Jussieu) M.V. Feigelman (Landau) L. Ioffe (Rutgers) M. Gershenson (Rutgers) Plan Honest (pessimistic) review of the state
More informationSplitting of a Cooper pair by a pair of Majorana bound states
Chapter 7 Splitting of a Cooper pair by a pair of Majorana bound states 7.1 Introduction Majorana bound states are coherent superpositions of electron and hole excitations of zero energy, trapped in the
More informationQuantum dynamics in Josephson junction circuits Wiebke Guichard Université Joseph Fourier/ Néel Institute Nano Department Equipe Cohérence quantique
Quantum dynamics in Josephson junction circuits Wiebke Guichard Université Joseph Fourier/ Néel Institute Nano Department Equipe Cohérence quantique Josephson junction team Olivier Buisson, Bernard Pannetier,
More informationCIRCUIT QUANTUM ELECTRODYNAMICS WITH ELECTRONS ON HELIUM
CIRCUIT QUANTUM ELECTRODYNAMICS WITH ELECTRONS ON HELIUM David Schuster Assistant Professor University of Chicago Chicago Ge Yang Bing Li Michael Geracie Yale Andreas Fragner Rob Schoelkopf Useful cryogenics
More informationExperimental Quantum Computing: A technology overview
Experimental Quantum Computing: A technology overview Dr. Suzanne Gildert Condensed Matter Physics Research (Quantum Devices Group) University of Birmingham, UK 15/02/10 Models of quantum computation Implementations
More informationSuperconducting Qubits Lecture 4
Superconducting Qubits Lecture 4 Non-Resonant Coupling for Qubit Readout A. Blais, R.-S. Huang, A. Wallraff, S. M. Girvin, and R. J. Schoelkopf, PRA 69, 062320 (2004) Measurement Technique Dispersive Shift
More informationSingle Microwave-Photon Detector based on Superconducting Quantum Circuits
17 th International Workshop on Low Temperature Detectors 19/July/2017 Single Microwave-Photon Detector based on Superconducting Quantum Circuits Kunihiro Inomata Advanced Industrial Science and Technology
More informationQuantum non-demolition measurement of a superconducting two-level system
1 Quantum non-demolition measurement of a superconducting two-level system A. Lupaşcu 1*, S. Saito 1,2, T. Picot 1, P. C. de Groot 1, C. J. P. M. Harmans 1 & J. E. Mooij 1 1 Quantum Transport Group, Kavli
More informationLecture 2: Double quantum dots
Lecture 2: Double quantum dots Basics Pauli blockade Spin initialization and readout in double dots Spin relaxation in double quantum dots Quick Review Quantum dot Single spin qubit 1 Qubit states: 450
More informationFrom SQUID to Qubit Flux 1/f Noise: The Saga Continues
From SQUID to Qubit Flux 1/f Noise: The Saga Continues Fei Yan, S. Gustavsson, A. Kamal, T. P. Orlando Massachusetts Institute of Technology, Cambridge, MA T. Gudmundsen, David Hover, A. Sears, J.L. Yoder,
More informationQuantum-information processing with circuit quantum electrodynamics
PHYSICAL REVIEW A 75, 339 7 Quantum-information processing with circuit quantum electrodynamics Alexandre Blais, 1, Jay Gambetta, 1 A Wallraff, 1,3 D I Schuster, 1 S M Girvin, 1 M H Devoret, 1 and R J
More informationElectrical quantum engineering with superconducting circuits
1.0 10 0.8 01 switching probability 0.6 0.4 0.2 00 P. Bertet & R. Heeres SPEC, CEA Saclay (France), Quantronics group 11 0.0 0 100 200 300 400 swap duration (ns) Electrical quantum engineering with superconducting
More informationInteraction between surface acoustic waves and a transmon qubit
Interaction between surface acoustic waves and a transmon qubit Ø Introduction Ø Artificial atoms Ø Surface acoustic waves Ø Interaction with a qubit on GaAs Ø Nonlinear phonon reflection Ø Listening to
More informationDoing Atomic Physics with Electrical Circuits: Strong Coupling Cavity QED
Doing Atomic Physics with Electrical Circuits: Strong Coupling Cavity QED Ren-Shou Huang, Alexandre Blais, Andreas Wallraff, David Schuster, Sameer Kumar, Luigi Frunzio, Hannes Majer, Steven Girvin, Robert
More information6.4 Physics of superconducting quantum circuits
AS-Chap. 6.4-1 6.4 Physics of superconducting quantum circuits 6.4 Physics of Superconducting Quantum Circuits AS-Chap. 6.4-3 General Hamiltonian H HO = E kin + E pot = p m + 1 mω r x k x e.g., 1 k x for
More informationdc measurements of macroscopic quantum levels in a superconducting qubit structure with a time-ordered meter
dc measurements of macroscopic quantum levels in a superconducting qubit structure with a time-ordered meter D. S. Crankshaw, K. Segall, D. Nakada, and T. P. Orlando Department of Electrical Engineering
More informationQubits: Supraleitende Quantenschaltungen. (i) Grundlagen und Messung
Braunschweiger Supraleiter-Seminar Seminar Qubits: Supraleitende Quantenschaltungen (i) Grundlagen und Messung Jens Könemann, Bundesallee 100, 38116 Braunschweig Q Φ 26. Mai 0/ 16 Braunschweiger Supraleiter-Seminar
More informationIntroduction to Quantum Mechanics of Superconducting Electrical Circuits
Introduction to Quantum Mechanics of Superconducting lectrical Circuits What is superconductivity? What is a osephson junction? What is a Cooper Pair Box Qubit? Quantum Modes of Superconducting Transmission
More informationJosephson charge qubits: a brief review
Quantum Inf Process (2009) 8:55 80 DOI 10.1007/s11128-009-0101-5 Josephson charge qubits: a brief review Yu. A. Pashkin O. Astafiev T. Yamamoto Y. Nakamura J. S. Tsai Published online: 13 February 2009
More informationSupplementary Information for Controlled catch and release of microwave photon states
Supplementary Information for Controlled catch and release of microwave photon states Yi Yin, 1, Yu Chen, 1 Daniel Sank, 1 P. J. J. O Malley, 1 T. C. White, 1 R. Barends, 1 J. Kelly, 1 Erik Lucero, 1 Matteo
More informationProcess Tomography of Quantum Memory in a Josephson Phase Qubit coupled to a Two-Level State
Process Tomography of Quantum Memory in a Josephson Phase Qubit coupled to a Two-Level State Matthew Neeley, M. Ansmann, Radoslaw C. Bialczak, M. Hofheinz, N. Katz, Erik Lucero, A. O Connell, H. Wang,
More informationarxiv:cond-mat/ v2 [cond-mat.mes-hall] 26 Jul 2007
Quantum localized modes in capacitively coupled Josephson junctions R. A. Pinto and S. Flach Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, 1187 Dresden, Germany (Dated: April 14,
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 informationEntanglement Control of Superconducting Qubit Single Photon System
: Quantum omputing Entanglement ontrol of Superconducting Qubit Single Photon System Kouichi Semba Abstract If we could achieve full control of the entangled states of a quantum bit (qubit) interacting
More informationSuperconducting Metamaterials
Superconducting Metamaterials P. Jung 1, S. Butz 1, N. Maleeva 1,2, A. Averkin 2, N. Abramov 2, K. Shulga 2,3 V. P. Koshelets 2,4, L. V. Filippenko 2,4, V. Chichkov 2 A. Karpov 2, S. V. Shitov 2,4, V.
More informationLecture 10 Superconducting qubits: advanced designs, operation 1 Generic decoherence problem: Λ 0 : intended
Lecture 10 Superconducting qubits: advanced designs, operation 1 Generic decoherence problem: Ĥ = Ĥ(p, q : Λ), Λ: control parameter { e.g. charge qubit Λ = V g gate voltage phase qubit Λ = I bias current
More informationRabi oscillations, Ramsey fringes and spin echoes in an electrical circuit
Fortschr. Phys. 51, No. 4 5, 462 468 (2003) / DOI 10.1002/prop.200310063 Rabi oscillations, Ramsey fringes and spin echoes in an electrical circuit D. Vion 1, A. Aassime 1, A. Cottet 1,P.Joyez 1, H. Pothier
More informationQuantum Optics with Electrical Circuits: Strong Coupling Cavity QED
Quantum Optics with Electrical Circuits: Strong Coupling Cavity QED Ren-Shou Huang, Alexandre Blais, Andreas Wallraff, David Schuster, Sameer Kumar, Luigi Frunzio, Hannes Majer, Steven Girvin, Robert Schoelkopf
More informationCircuit QED with electrons on helium:
Circuit QED with electrons on helium: What s the sound of one electron clapping? David Schuster Yale (soon to be at U. of Chicago) Yale: Andreas Fragner Rob Schoelkopf Princeton: Steve Lyon Michigan State:
More informationEngineering the quantum probing atoms with light & light with atoms in a transmon circuit QED system
Engineering the quantum probing atoms with light & light with atoms in a transmon circuit QED system Nathan K. Langford OVERVIEW Acknowledgements Ramiro Sagastizabal, Florian Luthi and the rest of the
More informationSUPPLEMENTARY INFORMATION
Fast spin information transfer between distant quantum dots using individual electrons B. Bertrand, S. Hermelin, S. Takada, M. Yamamoto, S. Tarucha, A. Ludwig, A. D. Wieck, C. Bäuerle, T. Meunier* Content
More informationDecoherence in Josephson and Spin Qubits. Lecture 3: 1/f noise, two-level systems
Decoherence in Josephson and Spin Qubits Alexander Shnirman University of Innsbruck Lecture 3: 1/f noise, two-level systems 1. Phenomenology of 1/f noise 2. Microscopic models 3. Relation between T1 relaxation
More informationState tomography of capacitively shunted phase qubits with high fidelity. Abstract
State tomography of capacitively shunted phase qubits with high fidelity Matthias Steffen, M. Ansmann, R. McDermott, N. Katz, Radoslaw C. Bialczak, Erik Lucero, Matthew Neeley, E.M. Weig, A.N. Cleland,
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 informationQuantum Optics with Electrical Circuits: Circuit QED
Quantum Optics with Electrical Circuits: Circuit QED Eperiment Rob Schoelkopf Michel Devoret Andreas Wallraff David Schuster Hannes Majer Luigi Frunzio Andrew Houck Blake Johnson Emily Chan Jared Schwede
More informationIBM Systems for Cognitive Solutions
IBM Q Quantum Computing IBM Systems for Cognitive Solutions Ehningen 12 th of July 2017 Albert Frisch, PhD - albert.frisch@de.ibm.com 2017 IBM 1 st wave of Quantum Revolution lasers atomic clocks GPS sensors
More informationElectrical Quantum Engineering with Superconducting Circuits
1.0 10 0.8 01 switching probability 0.6 0.4 0.2 00 Electrical Quantum Engineering with Superconducting Circuits R. Heeres & P. Bertet SPEC, CEA Saclay (France), Quantronics group 11 0.0 0 100 200 300 400
More informationDistributing Quantum Information with Microwave Resonators in Circuit QED
Distributing Quantum Information with Microwave Resonators in Circuit QED M. Baur, A. Fedorov, L. Steffen (Quantum Computation) J. Fink, A. F. van Loo (Collective Interactions) T. Thiele, S. Hogan (Hybrid
More informationarxiv:cond-mat/ v1 [cond-mat.mes-hall] 1 Apr 1999
Coherent control of macroscopic quantum states in a single-cooper-pair box arxiv:cond-mat/9904003v1 [cond-mat.mes-hall] 1 Apr 1999 Y. Nakamura, Yu. A. Pashkin & J. S. Tsai NEC Fundamental Research Laboratories,
More informationSupplementary Information for
Supplementary Information for Ultrafast Universal Quantum Control of a Quantum Dot Charge Qubit Using Landau-Zener-Stückelberg Interference Gang Cao, Hai-Ou Li, Tao Tu, Li Wang, Cheng Zhou, Ming Xiao,
More informationSMR/ JOINT ICTP-INFM SCHOOL/WORKSHOP ON "ENTANGLEMENT AT THE NANOSCALE" (28 October - 8 November 2002)
ii-i ii \,s:s: ^"n the abdus salam international centre for theoretical physics SMR/1438-10 JOINT ICTP-INFM SCHOOL/WORKSHOP ON "ENTANGLEMENT AT THE NANOSCALE" (28 October - 8 November 2002) "Adiabatic
More informationQuantum bits with Josephson junctions
Fizika Nizkikh Temperatur, 007, v. 33, No. 9, p. 957 98 Quantum bits with Josephson junctions (Review Article) G. Wendin and V.S. Shumeiko Department of Microtechnology and Nanoscience, Chalmers University
More informationCircuit Quantum Electrodynamics
Circuit Quantum Electrodynamics David Haviland Nanosturcture Physics, Dept. Applied Physics, KTH, Albanova Atom in a Cavity Consider only two levels of atom, with energy separation Atom drifts through
More informationDipole-coupling a single-electron double quantum dot to a microwave resonator
Dipole-coupling a single-electron double quantum dot to a microwave resonator 200 µm J. Basset, D.-D. Jarausch, A. Stockklauser, T. Frey, C. Reichl, W. Wegscheider, T. Ihn, K. Ensslin and A. Wallraff Quantum
More informationFlorent Lecocq. Control and measurement of an optomechanical system using a superconducting qubit. Funding NIST NSA/LPS DARPA.
Funding NIST NSA/LPS DARPA Boulder, CO Control and measurement of an optomechanical system using a superconducting qubit Florent Lecocq PIs Ray Simmonds John Teufel Joe Aumentado Introduction: typical
More informationViolation of Bell s inequality in Josephson phase qubits
Correction notice Violation of Bell s inequality in Josephson phase qubits Ken-Markus Ansmann, H. Wang, Radoslaw C. Bialczak, Max Hofheinz, Erik Lucero, M. Neeley, A. D. O Connell, D. Sank, M. Weides,
More informationTunable Resonators for Quantum Circuits
J Low Temp Phys (2008) 151: 1034 1042 DOI 10.1007/s10909-008-9774-x Tunable Resonators for Quantum Circuits A. Palacios-Laloy F. Nguyen F. Mallet P. Bertet D. Vion D. Esteve Received: 26 November 2007
More informationNitrogen-Vacancy Centers in Diamond A solid-state defect with applications from nanoscale-mri to quantum computing
Nitrogen-Vacancy Centers in Diamond A solid-state defect with applications from nanoscale-mri to quantum computing Research into nitrogen-vacancy centers in diamond has exploded in the last decade (see
More informationDesign Considerations for Integrated Semiconductor Control Electronics for a Large-scale Solid State Quantum Processor
Design Considerations for Integrated Semiconductor Control Electronics for a Large-scale Solid State Quantum Processor Hendrik Bluhm Andre Kruth Lotte Geck Carsten Degenhardt 1 0 Ψ 1 Quantum Computing
More informationThe Quantum Supremacy Experiment
The Quantum Supremacy Experiment John Martinis, Google & UCSB New tests of QM: Does QM work for 10 15 Hilbert space? Does digitized error model also work? Demonstrate exponential computing power: Check
More informationParity-Protected Josephson Qubits
Parity-Protected Josephson Qubits Matthew Bell 1,2, Wenyuan Zhang 1, Lev Ioffe 1,3, and Michael Gershenson 1 1 Department of Physics and Astronomy, Rutgers University, New Jersey 2 Department of Electrical
More informationSuperposition of two mesoscopically distinct quantum states: Coupling a Cooper-pair box to a large superconducting island
PHYSICAL REVIEW B, VOLUME 63, 054514 Superposition of two mesoscopically distinct quantum states: Coupling a Cooper-pair box to a large superconducting island Florian Marquardt* and C. Bruder Departement
More informationSuperconducting quantum circuit research -building blocks for quantum matter- status update from the Karlsruhe lab
Superconducting quantum circuit research -building blocks for quantum matter- status update from the Karlsruhe lab Martin Weides, Karlsruhe Institute of Technology July 2 nd, 2014 100 mm Basic potentials
More informationSynthesizing Arbitrary Photon States in a Superconducting Resonator John Martinis UC Santa Barbara
Synthesizing Arbitrary Photon States in a Superconducting Resonator John Martinis UC Santa Barbara Quantum Integrated Circuits Quantum currents & voltages Microfabricated atoms Digital to Analog Converter
More informationThis is an electronic reprint of the original article. This reprint may differ from the original in pagination and typographic detail.
Powered by TCPDF (www.tcpdf.org) This is an electronic reprint of the original article. This reprint may differ from the original in pagination and typographic detail. Author(s): Title: Kemppinen, Antti
More informationSynthesising arbitrary quantum states in a superconducting resonator
Synthesising arbitrary quantum states in a superconducting resonator Max Hofheinz 1, H. Wang 1, M. Ansmann 1, Radoslaw C. Bialczak 1, Erik Lucero 1, M. Neeley 1, A. D. O Connell 1, D. Sank 1, J. Wenner
More information