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Thesis

High fidelity readout of trapped ion qubits

Abstract:

This thesis describes experimental demonstrations of high-fidelity readout of trapped ion quantum bits ("qubits") for quantum information processing. We present direct single-shot measurement of an "optical" qubit stored in a single calcium-40 ion by the process of resonance fluorescence with a fidelity of 99.991(1)% (surpassing the level necessary for fault-tolerant quantum computation). A time-resolved maximum likelihood method is used to discriminate efficiently between the two qubit sta...

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Research group:
Ion Trap Quantum Computing Group
Oxford college:
Exeter College
Role:
Author

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Division:
MPLS
Department:
Physics
Role:
Supervisor
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Funding agency for:
Burrell, A
Publication date:
2010
Type of award:
DPhil
Level of award:
Doctoral
Awarding institution:
Oxford University, UK
Language:
English
Keywords:
Subjects:
UUID:
uuid:ff74c170-518a-40a5-be85-191ec5bb32d7
Local pid:
ora:4259
Deposit date:
2010-10-14

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