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dc.contributor.authorWei, L. F.en_US
dc.contributor.authorNori, Francoen_US
dc.date.accessioned2006-12-19T18:53:04Z
dc.date.available2006-12-19T18:53:04Z
dc.date.issued2004-04-23en_US
dc.identifier.citationWei, L F; Nori, Franco (2004). "Quantum phase estimation algorithms with delays: effects of dynamical phases." Journal of Physics A: Mathematical and General. 37(16): 4607-4617. <http://hdl.handle.net/2027.42/48842>en_US
dc.identifier.issn0305-4470en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/48842
dc.description.abstractThe unavoidable finite time intervals between the sequential operations needed for performing practical quantum computing can degrade the performance of quantum computers. During these delays, unwanted relative dynamical phases are produced due to the free evolution of the superposition wavefunction of the qubits. In general, these coherent ‘errors’ modify the desired quantum interferences and thus spoil the correct results, compared to the ideal standard quantum computing that does not consider the effects of delays between successive unitary operations. Here, we show that, in the framework of the quantum phase estimation algorithm, these coherent phase ‘errors’, produced by the time delays between sequential operations, can be avoided by setting up the delay times to satisfy certain matching conditions.en_US
dc.format.extent3118 bytes
dc.format.extent135939 bytes
dc.format.mimetypetext/plain
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherIOP Publishing Ltden_US
dc.titleQuantum phase estimation algorithms with delays: effects of dynamical phasesen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumFrontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-0198, Japan; Permanent address: Center of Theoretical Physics, Physics Department, Center for the Study of Complex Systems, University of Michigan, Ann Arbor, MI 48109-1120, USAen_US
dc.contributor.affiliationotherFrontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-0198, Japan; Institute of Quantum Optics and Quantum Information, Department of Physics, Shanghai Jiaotong University, Shanghai 200030, People's Republic of Chinaen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/48842/2/a4_16_010.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1088/0305-4470/37/16/010en_US
dc.identifier.sourceJournal of Physics A: Mathematical and General.en_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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