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Khromova, Anastasiya: Quantum gates with trapped ions using magnetic gradient induced coupling. 2012
Inhalt
Front page
Zusammenfassung
Abstract
Contents
1. Introduction
2. Theory
2.1 Quantum Logic with Trapped Ions
2.2 MAGIC Scheme
3. Construction of the Experimental Setup
3.1 Linear Ion Trap
3.2 Trap Drives
3.3 Laser Systems for Ytterbium
3.4 Vacuum System
3.5 Lambda-meter
3.6 Static Magnetic Fields
3.7 Polarization in the Experiment
3.8 Microwave
3.9 Magnetic Gradient
3.10 Detection System
4. Operating the Trap
4.1 Photo-ionization
4.2 Loading the Ions
4.3 Micro-motion Compensation
5. Design of a new Linear Resonator Trap
6. Experimental Methods
6.1 Measurement Sequence
6.2 Laser Cooling
6.3 Rabi Frequency Measurements
6.4 Addressing of the Ions with Microwave
6.5 Coupling of the Internal and Motional States
6.6 Coherence of the qubits
7. Measurement of the Coupling Constant
7.1 Measurement of the Spin-Spin Coupling of two Ions
7.2 Experimental Results
8. Two Ion CNOT Gate and Entanglement
8.1 Two Ion CNOT Gate
8.2 Two-Ion Entangled State
8.3 Entanglement in a Linear Ion Chain
8.4 Error Estimation
9. Conclusion
A. Glossary of Symbols
B. Ion in the External Magnetic Field
C. RF Resonator
D. Two-AOM Double-Pass Systems
E. Vacuum System
F. SR850 Lock-In Amplifier
G. Heating of the static coils
H. Microwave Antenna
I. Detection System
J. Samarium Cobalt (Sintered) S2869 Properties
K. Micro-motion compensation
L. The matrix Snl
M. The κ-parameter calculations
N. Rabi Frequencies
O. CCD Camera Labview Interface
P. Devices
Q. Technical Information
Bibliography
Acknowledgements