Enhancing quantum coherence with short-range correlated disorder

We introduce a two-dimensional short-range correlated disorder that is the natural generalization of the well-known one-dimensional dual random dimer model [D. H. Dunlap, Phys. Rev. Lett. 65, 88 (1990)PRLTAO0031-900710.1103/PhysRevLett.65.88]. We demonstrate that, as in one dimension, this model ind...

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Publicado:	2015
Materias:	Condensate fractions Interacting bosons Localization-delocalization transitions Natural generalization Short-range correlated disorder Short-range correlations Single particle spectrum Spatial homogeneity Quantum theory
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v92_n5_p_Capuzzi http://hdl.handle.net/20.500.12110/paper_10502947_v92_n5_p_Capuzzi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_10502947_v92_n5_p_Capuzzi
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spelling	paper:paper_10502947_v92_n5_p_Capuzzi2023-06-08T16:02:52Z Enhancing quantum coherence with short-range correlated disorder Condensate fractions Interacting bosons Localization-delocalization transitions Natural generalization Short-range correlated disorder Short-range correlations Single particle spectrum Spatial homogeneity Quantum theory We introduce a two-dimensional short-range correlated disorder that is the natural generalization of the well-known one-dimensional dual random dimer model [D. H. Dunlap, Phys. Rev. Lett. 65, 88 (1990)PRLTAO0031-900710.1103/PhysRevLett.65.88]. We demonstrate that, as in one dimension, this model induces a localization-delocalization transition in the single-particle spectrum. Moreover we show that the effect of such a disorder on a weakly interacting boson gas is to enhance the condensate spatial homogeneity and delocalization and to increase the condensate fraction around an effective resonance of the two-dimensional dual dimers. This study proves that short-range correlations of a disordered potential can enhance the quantum coherence of a weakly interacting many-body system. © 2015 American Physical Society. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v92_n5_p_Capuzzi http://hdl.handle.net/20.500.12110/paper_10502947_v92_n5_p_Capuzzi
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Condensate fractions Interacting bosons Localization-delocalization transitions Natural generalization Short-range correlated disorder Short-range correlations Single particle spectrum Spatial homogeneity Quantum theory
spellingShingle	Condensate fractions Interacting bosons Localization-delocalization transitions Natural generalization Short-range correlated disorder Short-range correlations Single particle spectrum Spatial homogeneity Quantum theory Enhancing quantum coherence with short-range correlated disorder
topic_facet	Condensate fractions Interacting bosons Localization-delocalization transitions Natural generalization Short-range correlated disorder Short-range correlations Single particle spectrum Spatial homogeneity Quantum theory
description	We introduce a two-dimensional short-range correlated disorder that is the natural generalization of the well-known one-dimensional dual random dimer model [D. H. Dunlap, Phys. Rev. Lett. 65, 88 (1990)PRLTAO0031-900710.1103/PhysRevLett.65.88]. We demonstrate that, as in one dimension, this model induces a localization-delocalization transition in the single-particle spectrum. Moreover we show that the effect of such a disorder on a weakly interacting boson gas is to enhance the condensate spatial homogeneity and delocalization and to increase the condensate fraction around an effective resonance of the two-dimensional dual dimers. This study proves that short-range correlations of a disordered potential can enhance the quantum coherence of a weakly interacting many-body system. © 2015 American Physical Society.
title	Enhancing quantum coherence with short-range correlated disorder
title_short	Enhancing quantum coherence with short-range correlated disorder
title_full	Enhancing quantum coherence with short-range correlated disorder
title_fullStr	Enhancing quantum coherence with short-range correlated disorder
title_full_unstemmed	Enhancing quantum coherence with short-range correlated disorder
title_sort	enhancing quantum coherence with short-range correlated disorder
publishDate	2015
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v92_n5_p_Capuzzi http://hdl.handle.net/20.500.12110/paper_10502947_v92_n5_p_Capuzzi
_version_	1768541763598811136

Enhancing quantum coherence with short-range correlated disorder

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