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Article: Tight upper bound of the maximum speed of evolution of a quantum state

TitleTight upper bound of the maximum speed of evolution of a quantum state
Authors
Chau, HF
KeywordsPhysics
Issue Date2010
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A (Atomic, Molecular and Optical Physics), 2010, v. 81 n. 6, article no. 062133 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevA.81.062133
AbstractI report a tight upper bound of the maximum speed of evolution from one quantum state ρ to another ρ′ with fidelity F(ρ,ρ′) less than or equal to an arbitrary but fixed value under the action of a time-independent Hamiltonian. Since the bound is directly proportional to the average absolute deviation from the median of the energy of the state DE, one may interpret DE as a meaningful measure of the maximum information-processing capability of a system. © 2010 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/123858
ISSN
1050-2947
2014 Impact Factor: 2.808
ISI Accession Number ID
WOS:000279380100003
Funding AgencyGrant Number
RGC of the HKSAR GovernmentHKU 700709P
Funding Information:

I thank C.-H. F. Fung, K. Y. Lee, and H.-K. Lo for their discussions. This work is supported by the RGC Grant No. HKU 700709P of the HKSAR Government.

References
References in Scopus
Grants
Quantifying Quantumness By Quantum Information Theoretic Means

 

DC FieldValueLanguage
dc.contributor.authorChau, HFen_HK
dc.date.accessioned2010-10-05T07:00:26Z-
dc.date.available2010-10-05T07:00:26Z-
dc.date.issued2010en_HK
dc.identifier.citationPhysical Review A (Atomic, Molecular and Optical Physics), 2010, v. 81 n. 6, article no. 062133-
dc.identifier.issn1050-2947en_HK
dc.identifier.urihttp://hdl.handle.net/10722/123858-
dc.description.abstractI report a tight upper bound of the maximum speed of evolution from one quantum state ρ to another ρ′ with fidelity F(ρ,ρ′) less than or equal to an arbitrary but fixed value under the action of a time-independent Hamiltonian. Since the bound is directly proportional to the average absolute deviation from the median of the energy of the state DE, one may interpret DE as a meaningful measure of the maximum information-processing capability of a system. © 2010 The American Physical Society.en_HK
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.orgen_HK
dc.relation.ispartofPhysical Review A (Atomic, Molecular and Optical Physics)-
dc.rightsCopyright 2010 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevA.81.062133-
dc.subjectPhysics-
dc.titleTight upper bound of the maximum speed of evolution of a quantum stateen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1050-2947&volume=81&issue=8 article no. 062133&spage=&epage=&date=2010&atitle=Tight+upper+bound+of+the+maximum+speed+of+evolution+of+a+quantum+state-
dc.identifier.emailChau, HF: hfchau@hku.hken_HK
dc.identifier.authorityChau, HF=rp00669en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevA.81.062133en_HK
dc.identifier.scopuseid_2-s2.0-77954193862en_HK
dc.identifier.hkuros172476-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77954193862&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume81en_HK
dc.identifier.issue6en_HK
dc.identifier.spagearticle no. 062133-
dc.identifier.epagearticle no. 062133-
dc.identifier.eissn1094-1622-
dc.identifier.isiWOS:000279380100003-
dc.publisher.placeUnited Statesen_HK
dc.relation.projectQuantifying Quantumness By Quantum Information Theoretic Means-
dc.identifier.scopusauthoridChau, HF=7005742276en_HK
dc.identifier.issnl1050-2947-

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