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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todo:paper_10502947_v92_n5_p_Capuzzi2023-10-03T16:00:24Z Enhancing quantum coherence with short-range correlated disorder Capuzzi, P. Gattobigio, M. Vignolo, P. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Capuzzi, P. Gattobigio, M. Vignolo, P. 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. |
| format |
JOUR |
| author |
Capuzzi, P. Gattobigio, M. Vignolo, P. |
| author_facet |
Capuzzi, P. Gattobigio, M. Vignolo, P. |
| author_sort |
Capuzzi, P. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_10502947_v92_n5_p_Capuzzi |
| work_keys_str_mv |
AT capuzzip enhancingquantumcoherencewithshortrangecorrelateddisorder AT gattobigiom enhancingquantumcoherencewithshortrangecorrelateddisorder AT vignolop enhancingquantumcoherencewithshortrangecorrelateddisorder |
| _version_ |
1807319665377017856 |