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Equation of motion for estimation fidelity of monitored oscillating qubits

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dc.contributor.author Bassa, H
dc.contributor.author Konrad, T
dc.contributor.author Diósi, L
dc.contributor.author Uys, Hermann
dc.date.accessioned 2017-09-22T10:22:53Z
dc.date.available 2017-09-22T10:22:53Z
dc.date.issued 2017-08
dc.identifier.citation Bassa, H., Konrad, T., Diósi, L. et al. 2017. Equation of motion for estimation fidelity of monitored oscillating qubits. Physics Letters A, vol. 381(29): 2293-2297 en_US
dc.identifier.issn 0375-9601
dc.identifier.uri doi.org/10.1016/j.physleta.2017.05.013
dc.identifier.uri http://www.sciencedirect.com/science/article/pii/S0375960117304516
dc.identifier.uri http://hdl.handle.net/10204/9592
dc.description Copyright: 2017 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, kindly consult the publisher's website. en_US
dc.description.abstract We study the convergence properties of state estimates of an oscillating qubit being monitored by a sequence of discrete, unsharp measurements. Our method derives a differential equation determining the evolution of the estimation fidelity from a single incremental step. If the oscillation frequency is precisely known, the estimation fidelity converges exponentially fast to unity. For imprecise knowledge of we derive the asymptotic estimation fidelity. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Worklist;19514
dc.subject Unsharp measurement en_US
dc.subject Quantum state estimation en_US
dc.subject Weak measurement en_US
dc.subject Quantum measurement en_US
dc.subject Qubits en_US
dc.title Equation of motion for estimation fidelity of monitored oscillating qubits en_US
dc.type Article en_US
dc.identifier.apacitation Bassa, H., Konrad, T., Diósi, L., & Uys, H. (2017). Equation of motion for estimation fidelity of monitored oscillating qubits. http://hdl.handle.net/10204/9592 en_ZA
dc.identifier.chicagocitation Bassa, H, T Konrad, L Diósi, and Hermann Uys "Equation of motion for estimation fidelity of monitored oscillating qubits." (2017) http://hdl.handle.net/10204/9592 en_ZA
dc.identifier.vancouvercitation Bassa H, Konrad T, Diósi L, Uys H. Equation of motion for estimation fidelity of monitored oscillating qubits. 2017; http://hdl.handle.net/10204/9592. en_ZA
dc.identifier.ris TY - Article AU - Bassa, H AU - Konrad, T AU - Diósi, L AU - Uys, Hermann AB - We study the convergence properties of state estimates of an oscillating qubit being monitored by a sequence of discrete, unsharp measurements. Our method derives a differential equation determining the evolution of the estimation fidelity from a single incremental step. If the oscillation frequency is precisely known, the estimation fidelity converges exponentially fast to unity. For imprecise knowledge of we derive the asymptotic estimation fidelity. DA - 2017-08 DB - ResearchSpace DP - CSIR KW - Unsharp measurement KW - Quantum state estimation KW - Weak measurement KW - Quantum measurement KW - Qubits LK - https://researchspace.csir.co.za PY - 2017 SM - 0375-9601 T1 - Equation of motion for estimation fidelity of monitored oscillating qubits TI - Equation of motion for estimation fidelity of monitored oscillating qubits UR - http://hdl.handle.net/10204/9592 ER - en_ZA


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