Mostrar el registro sencillo del ítem
dc.contributor.author
Lopez, Cecilia Carolina
dc.contributor.author
Paz, Juan Pablo
dc.date.available
2019-03-19T15:24:00Z
dc.date.issued
2003-11
dc.identifier.citation
Lopez, Cecilia Carolina; Paz, Juan Pablo; Phase-space approach to the study of decoherence in quantum walks; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 68; 5; 11-2003; 1-9; 52305
dc.identifier.issn
1050-2947
dc.identifier.uri
http://hdl.handle.net/11336/71992
dc.description.abstract
We analyze the quantum walk on a cycle using discrete Wigner functions as a way to represent the states and the evolution of the walker. The method provides some insight on the nature of the interference effects that make quantum and classical walks different. We also study the behavior of the system when the quantum coin carried by the walker interacts with an environment. We show that for this system quantum coherence is robust for initially delocalized states of the walker. The use of phase-space representation enables us to develop an intuitive description of the nature of the decoherence process in this system.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Decoherence
dc.subject
Quantum Walks
dc.subject
Phase Space
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Phase-space approach to the study of decoherence in quantum walks
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-19T13:43:50Z
dc.journal.volume
68
dc.journal.number
5
dc.journal.pagination
1-9; 52305
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Lopez, Cecilia Carolina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
dc.description.fil
Fil: Paz, Juan Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina. Los Alamos National High Magnetic Field Laboratory; Estados Unidos
dc.journal.title
Physical Review A: Atomic, Molecular and Optical Physics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.68.052305
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/quant-ph/0308104
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevA.68.052305
Archivos asociados