Quantum phase estimation algorithms with delays: effects of dynamical phases
dc.contributor.author | Wei, L. F. | en_US |
dc.contributor.author | Nori, Franco | en_US |
dc.date.accessioned | 2006-12-19T18:53:04Z | |
dc.date.available | 2006-12-19T18:53:04Z | |
dc.date.issued | 2004-04-23 | en_US |
dc.identifier.citation | Wei, 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.issn | 0305-4470 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/48842 | |
dc.description.abstract | The 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.extent | 3118 bytes | |
dc.format.extent | 135939 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.publisher | IOP Publishing Ltd | en_US |
dc.title | Quantum phase estimation algorithms with delays: effects of dynamical phases | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Frontier 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, USA | en_US |
dc.contributor.affiliationother | Frontier 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 China | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/48842/2/a4_16_010.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1088/0305-4470/37/16/010 | en_US |
dc.identifier.source | Journal of Physics A: Mathematical and General. | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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