Orbital entanglement and electron localization in quantum wires
Aleta, A. (Universidad de Zaragoza) ; Villarrubia-Rojo, H. ; Frustaglia, D. ; Gopar, V.A. (Universidad de Zaragoza)
Resumen: We study the signatures of disorder in the production of orbital electron entanglement in quantum wires. Disordered entanglers suffer the effects of localization of the electron wave function and random fluctuations in entanglement production. This manifests in the statistics of the concurrence, a measure of the produced two-qubit entanglement. We calculate the concurrence distribution as a function of the disorder strength within a random-matrix approach. We also identify significant constraints on the entanglement production as a consequence of the breaking/preservation of time-reversal symmetry. Additionally, our theoretical results are independently supported by simulations of disordered quantum wires based on a tight-binding model.
Idioma: Inglés
DOI: 10.1103/PhysRevB.89.075429
Año: 2014
Publicado en: Physical Review B. Condensed matter and materials physics 89, 7 (2014), 075429 [5 pp]
ISSN: 1098-0121
Factor impacto JCR: 3.736 (2014)
Categ. JCR: PHYSICS, CONDENSED MATTER rank: 14 / 66 = 0.212 (2014) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2011-29400
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2012-35719-C02
Tipo y forma: Article (Published version)
Área (Departamento): Física Teórica (Departamento de Física Teórica)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material.
Exportado de SIDERAL (2017-05-04-08:51:03)
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Idioma: Inglés
DOI: 10.1103/PhysRevB.89.075429
Año: 2014
Publicado en: Physical Review B. Condensed matter and materials physics 89, 7 (2014), 075429 [5 pp]
ISSN: 1098-0121
Factor impacto JCR: 3.736 (2014)
Categ. JCR: PHYSICS, CONDENSED MATTER rank: 14 / 66 = 0.212 (2014) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2011-29400
Financiación: info:eu-repo/grantAgreement/ES/MINECO/FIS2012-35719-C02
Tipo y forma: Article (Published version)
Área (Departamento): Física Teórica (Departamento de Física Teórica)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. Exportado de SIDERAL (2017-05-04-08:51:03)
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Record created 2016-01-20, last modified 2017-05-04