基于单个超冷囚禁离子对基本量子定律的精密测量和实验研究

发布时间：2021-02-23 17:27

　　Over the last few decades,quantum computing（QC）and quantum information processing（QIP）have exploded into a major field of physics,in terms of theory and experimentation extending towards a universal quantum computer as a lasting dream Additionally trapped-ion system is also considered as an ideal platform to investigate the quantum mechanical problems of fundamental nature,due to its decent isolation from exterior,high fidelity manipulation,measurement and extraordinary detection efficiency in c... 

【文章来源】：中国科学院大学(中国科学院武汉物理与数学研究所)湖北省

【文章页数】：189 页

【学位级别】：博士

【文章目录】：
abstract
Acknowledgements
LIST OF ABBREVIATIONS
Chapter 1 Introduction to Trapped-ion Quantum Computing and Information
    1.1 Introduction
    1.2 A NEW DISCIPLINE-QUANTUM INFORMATION
        1.2.1 Overview of quantum information
        1.2.2 Quantum information based on ion trap
    1.3 Ion trap quantum computing and quantum information
    1.4 Work presented in this thesis
    1.5 ORGANIZATION OF THE THESIS
Chapter 2 Quantum Bit-Qubit
    2.1 Single qubit
    2.2 Multi qubits
    2.3 Quantum gate
        2.3.1 Single qubit gate
        2.3.2 Multiple qubit gate
40CA⁺">    2.4 ATOMIC STRUCTURE OF ⁴⁰CA+

Chapter 3 Overview of Trapped-Ion System
    3.1 ION TRAPS
        3.1.1 Linear Paul trap
        3.1.2 Trapping potential
        3.1.3 Effective potential and the pseudo potential
    3.2 LASER-ION INTERACTIONS
        3.2.1 Basic interactions
        3.2.2 Lamb-Dicke regime
    3.3 LASER COOLING
        3.3.1 Doppler cooling
        3.3.2 Sideband cooling
40CA⁺">    3.4 SPECTRUM OF ⁴⁰CA⁺

        3.4.1 Overview of ⁴⁰Ca⁺ spectrum
        3.4.2 Electric quadrupole transition
    3.5 QUANTUM HARMONIC OSCILLATOR AND COHERENT STATES
Chapter 4 Experimental Setup
    4.1 INTRODUCTION
    4.2 ION TRAP SYSTEM
        4.2.1 Linear ion trap, vacuum system and magnetic field
        4.2.2 Trapping potential generating system
    4.3 LASER SYSTEM
        4.3.1 Overview of our Laser scheme
        4.3.2 Optical path
    4.4 FLUORESCENCE DETECTION SYSTEM
    4.5 Control system
        4.5.1 Computer-control system
        4.5.2 Timing control signal generation
    4.6 LASER FREQUENCY PHASE CONTROL
Chapter 5 Single-Atom Demonstration of Quantum Landauer Principle
    5.1 INTRODUCTION
    5.2 Theoretical background
    5.3 THE EXPERIMENTAL SYSTEM AND SCHEME
        5.3.1 Experimental system
        5.3.2 Experimental scheme
        5.3.3 The feasibility of experimental measurement
    5.4 EXPERIMENT PROGRESSIONS
        5.4.1 Unitary transformation
        5.4.2 Phonon number measurement
        5.4.3 Heating rate measurement
        5.4.4 Information erasure
    5.5 Experimental data
    5.6 CONCLUSION
Chapter 6 An Extended exploration of Heisenberg Uncertainty lower bounds for three Incompatible Observables at single-spin level
    6.1 INTRODUCTION
    6.2 Basic theory
    6.3 THEORETICAL DETAIL AND PROOFS
        6.3.1 Solution to Eq. 6.10 and derivation of optimized lower bound
    6.4 THREE ORTHOGONAL INCOMPATIBLE OBSERVABLES
        6.4.1 Details for three orthogonal incompatible observables
    6.5 THREE COPLANAR INCOMPATIBLE OBSERVABLES
        6.5.1 Detail for three coplanar incompatible observables
    6.6 DETAIL FOR THREE INCOMPATIBLE OBSERVABLE WITH ONE ORTHOGONAL TO OTHER TWO
    6.7 Experimental procedures
        6.7.1 Fundamental operations in experimental evolutions
        6.7.2 Three incompatible observables oriented orthogonally
        6.7.3 Three coplanar incompatible observables
        6.7.4 Three incompatible observables when one of them is orthogonal to the other two
    6.8 ESSENTIAL ASPECTS OF EXPERIMENTAL MANIPULATIONS
    6.9 Conclusion
<sup>43Ca⁺ Trapped-Ions">Chapter 7 Quantum Information using ^<sup>43Ca⁺ Trapped-Ions
    7.1 Introduction
        7.1.1 Calcium 40 Ion
        7.1.2 Calcium 43 Ion
43CA⁺">    7.2 SELECTION OF QUBIT IN ⁴³CA⁺

    7.3 QIP with ⁴³Ca⁺ions
    7.4 EXPERIMENTAL SETUP
        7.4.1 Laser system
        7.4.2 Ion trap system
        7.4.3 Vacuum, control and imaging system
        7.4.4 Optical and frequency resolved pumping
        7.4.5 Sideband cooling
        7.4.6 State detection
43CA⁺ SETUP">    7.5 PURPOSE OF THE ⁴³CA⁺ SETUP
SUMMARY AND OUTLOOK
APPENDIX A
APPENDIX B
REFERENCES
AUTHOR'S SHORT RESUME
LIST OF PUBLICATIONS


【参考文献】：
博士论文
[1]线形离子阱量子计算系统的优化和脉冲声子激光的研究[D]. 谢艺.中国科学院研究生院（武汉物理与数学研究所） 2013



本文编号：3047957

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