Thermometry of bosonic mixtures in Optical Lattices via Demixing

Abstract Motivated by recent experiments and theoretical investigations on binary mixtures, we investigate the miscible-immiscible transition at finite temperature by means of Quantum Monte Carlo. Based on the observation that the segregated phase is strongly affected by temperature, we propose to u...

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Main Authors: F. Lingua, B. Capogrosso-Sansone, F. Minardi, V. Penna
Format: Article
Language:English
Published: Nature Portfolio 2017-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-05353-6
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author F. Lingua
B. Capogrosso-Sansone
F. Minardi
V. Penna
author_facet F. Lingua
B. Capogrosso-Sansone
F. Minardi
V. Penna
author_sort F. Lingua
collection DOAJ
description Abstract Motivated by recent experiments and theoretical investigations on binary mixtures, we investigate the miscible-immiscible transition at finite temperature by means of Quantum Monte Carlo. Based on the observation that the segregated phase is strongly affected by temperature, we propose to use the degree of demixing for thermometry of a binary bosonic mixture trapped in an optical lattice. We show that the proposed method is especially sensitive at low temperatures, of the order of the tunnelling amplitude, and therefore is particularly suitable in the regime where quantum magnetism is expected.
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spelling doaj.art-8abcb611a7814b94a2c77c480a3afa752022-12-21T19:27:52ZengNature PortfolioScientific Reports2045-23222017-07-01711910.1038/s41598-017-05353-6Thermometry of bosonic mixtures in Optical Lattices via DemixingF. Lingua0B. Capogrosso-Sansone1F. Minardi2V. Penna3Department of Applied Science and Technology and u.d.r. CNISM, Politecnico di TorinoDepartment of Physics, Clark UniversityIstituto Nazionale di Ottica (INO-CNR)Department of Applied Science and Technology and u.d.r. CNISM, Politecnico di TorinoAbstract Motivated by recent experiments and theoretical investigations on binary mixtures, we investigate the miscible-immiscible transition at finite temperature by means of Quantum Monte Carlo. Based on the observation that the segregated phase is strongly affected by temperature, we propose to use the degree of demixing for thermometry of a binary bosonic mixture trapped in an optical lattice. We show that the proposed method is especially sensitive at low temperatures, of the order of the tunnelling amplitude, and therefore is particularly suitable in the regime where quantum magnetism is expected.https://doi.org/10.1038/s41598-017-05353-6
spellingShingle F. Lingua
B. Capogrosso-Sansone
F. Minardi
V. Penna
Thermometry of bosonic mixtures in Optical Lattices via Demixing
Scientific Reports
title Thermometry of bosonic mixtures in Optical Lattices via Demixing
title_full Thermometry of bosonic mixtures in Optical Lattices via Demixing
title_fullStr Thermometry of bosonic mixtures in Optical Lattices via Demixing
title_full_unstemmed Thermometry of bosonic mixtures in Optical Lattices via Demixing
title_short Thermometry of bosonic mixtures in Optical Lattices via Demixing
title_sort thermometry of bosonic mixtures in optical lattices via demixing
url https://doi.org/10.1038/s41598-017-05353-6
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AT vpenna thermometryofbosonicmixturesinopticallatticesviademixing