Related papers: Dipole condensates in tilted Bose-Hubbard chains

Dipole condensates in tilted Bose-Hubbard chains

URL: http://arxiv.org/abs/2210.02470v2
Date: Thu, 20 Oct 2022 17:47:14 GMT
Title: Dipole condensates in tilted Bose-Hubbard chains
Authors: Ethan Lake, Hyun-Yong Lee, Jung Hoon Han, and T. Senthil
Abstract summary: We study the quantum phase diagram of a Bose-Hubbard chain whose dynamics conserves boson number and boson dipole moment. The conservation of dipole moment has a dramatic effect on the phase diagram, which we analyze by combining a field theory analysis with DMRG simulations.
Score: 0.23624125155742057
License: http://creativecommons.org/licenses/by/4.0/
Abstract: We study the quantum phase diagram of a Bose-Hubbard chain whose dynamics conserves both boson number and boson dipole moment, a situation which can arise in strongly tilted optical lattices. The conservation of dipole moment has a dramatic effect on the phase diagram, which we analyze by combining a field theory analysis with DMRG simulations. Unlike the conventional Bose-Hubbard model, the phase diagram contains no compressible phases, and is instead dominated by various types of exotic dipolar condensates. We suggest ways by which these condensates can be identified in near-term cold atom experiments.

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