Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/153724
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dc.titleTHE EFFECT OF THE CENTER-OF-MASS MOTION ON THE FIDELITY OF NEUTRAL-ATOM QUANTUM GATES AND THE OPTIMAL CIRCUIT FOR A PROTECTED QUBIT
dc.contributor.authorYE LUYAO
dc.date.accessioned2019-05-06T18:01:47Z
dc.date.available2019-05-06T18:01:47Z
dc.date.issued2018-12-31
dc.identifier.citationYE LUYAO (2018-12-31). THE EFFECT OF THE CENTER-OF-MASS MOTION ON THE FIDELITY OF NEUTRAL-ATOM QUANTUM GATES AND THE OPTIMAL CIRCUIT FOR A PROTECTED QUBIT. ScholarBank@NUS Repository.
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/153724
dc.description.abstractIn the first part, we study the effects of the center-of-mass (CM) motion on Raman transitions. Theoretical and experimental values of the fidelities of two-qubit neutral-atom gates suffer significant disagreement. This suggests that a more thorough analysis on the possible errors in the implementation of the gates is needed. We find that there is a strong correlation between the CM motion and the fidelity of the gate. We also demonstrate the previous discrepancies between theoretical and experimental results in the robustness analysis for a control-phase gate, which can be resolved by considering the effects of the CM motion. In the second part, we study the optimal circuit for the decoherence-free memory scheme of R. Han's PhD thesis on 2012. We are able to find a circuit that contains fewer single-qubit gates than the existing optimal scheme. Finally, we use the Monte Carlo method to show the robustness of the circuit under general noise.
dc.language.isoen
dc.subjectcenter-of-mass, neutral atom, quantum gate, quantum computing, Raman transition, fidelity.
dc.typeThesis
dc.contributor.departmentCENTRE FOR QUANTUM TECHNOLOGIES
dc.contributor.supervisorENGLERT, BERTHOLD-GEORG
dc.description.degreePh.D
dc.description.degreeconferredDOCTOR OF PHILOSOPHY
Appears in Collections:Ph.D Theses (Open)

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