Waterlike anomalies on the Bose-Hubbard Model

Although well-researched as a prototype Hamiltonian for strongly interacting quantum systems, the Bose-Hubbard model has not so far been explored as a fluid system with waterlike anomalies. In this work we show that this model supports, in the limit of a strongly localizing confining potential, dens...

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Bibliographic Details
Published in:arXiv.org 2018-05
Main Authors: Eduardo Osório Rizzatti, Márcio Sampaio Gomes Filho, Mariana Malard Sales, Barbosa, Marco Aurélio A
Format: Article
Language:English
Subjects:
Anomalies
Confining
Insulators
Phase transitions
Water
Online Access:Get full text
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Summary:Although well-researched as a prototype Hamiltonian for strongly interacting quantum systems, the Bose-Hubbard model has not so far been explored as a fluid system with waterlike anomalies. In this work we show that this model supports, in the limit of a strongly localizing confining potential, density anomalies which can be traced back to ground state (zero-temperature) phase transitions between different Mott insulators. This key finding opens a new pathway for theoretical and experimental studies of liquid water and, in particular, we propose a test of our predictions that can be readily implemented in a ultra-cold atom platform.
ISSN:2331-8422