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Maintaining quantum coherence in the presence of noise through state monitoring

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dc.contributor.author Konrad, T
dc.contributor.author Uys, H
dc.date.accessioned 2012-06-21T10:01:27Z
dc.date.available 2012-06-21T10:01:27Z
dc.date.issued 2012-01
dc.identifier.citation Konrad, T and Uys, H. 2012. Maintaining quantum coherence in the presence of noise through state monitoring. Physical Review A, vol. 85, pp 012102(1) - 012102(4) en_US
dc.identifier.issn 1050-2947
dc.identifier.uri http://pra.aps.org/pdf/PRA/v85/i1/e012102
dc.identifier.uri http://hdl.handle.net/10204/5928
dc.description Copyright: 2012 American Physical Society en_US
dc.description.abstract Unsharp measurements allow the estimation and tracking of quantum wave functions in real time with minimal disruption of the dynamics. Here we demonstrate that high-fidelity state monitoring, and hence quantum control, is possible, even in the presence of classical dephasing and amplitude noise, by simulating such measurements on a two-level system undergoing Rabi oscillations. Finite estimation fidelity is found to persist indefinitely after the decoherence times set by the noise fields in the absence of measurement. en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.relation.ispartofseries Workflow;8700
dc.subject Quantum wave function en_US
dc.subject Quantum control en_US
dc.subject Rabi oscillations en_US
dc.title Maintaining quantum coherence in the presence of noise through state monitoring en_US
dc.type Article en_US
dc.identifier.apacitation Konrad, T., & Uys, H. (2012). Maintaining quantum coherence in the presence of noise through state monitoring. http://hdl.handle.net/10204/5928 en_ZA
dc.identifier.chicagocitation Konrad, T, and H Uys "Maintaining quantum coherence in the presence of noise through state monitoring." (2012) http://hdl.handle.net/10204/5928 en_ZA
dc.identifier.vancouvercitation Konrad T, Uys H. Maintaining quantum coherence in the presence of noise through state monitoring. 2012; http://hdl.handle.net/10204/5928. en_ZA
dc.identifier.ris TY - Article AU - Konrad, T AU - Uys, H AB - Unsharp measurements allow the estimation and tracking of quantum wave functions in real time with minimal disruption of the dynamics. Here we demonstrate that high-fidelity state monitoring, and hence quantum control, is possible, even in the presence of classical dephasing and amplitude noise, by simulating such measurements on a two-level system undergoing Rabi oscillations. Finite estimation fidelity is found to persist indefinitely after the decoherence times set by the noise fields in the absence of measurement. DA - 2012-01 DB - ResearchSpace DP - CSIR KW - Quantum wave function KW - Quantum control KW - Rabi oscillations LK - https://researchspace.csir.co.za PY - 2012 SM - 1050-2947 T1 - Maintaining quantum coherence in the presence of noise through state monitoring TI - Maintaining quantum coherence in the presence of noise through state monitoring UR - http://hdl.handle.net/10204/5928 ER - en_ZA


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