A Path-Integral Analysis of Interacting Bose Gases and Loop Gases
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DOI: 10.1007/s10955-020-02543-x
Abstract: We review some recent results on interacting Bose gases in thermal equilibrium. In particular, we study the convergence of the grand-canonical equilibrium states of such gases to their mean-field limits, which are given by the… read more here.
Keywords: path integral; analysis interacting; gases loop; interacting bose ... See more keywords
Binding energy of homogeneous Bose gases
Sign Up to like & getrecommendations! Published in 2018 at "Letters in Mathematical Physics"
DOI: 10.1007/s11005-017-0992-5
Abstract: We compute the energy needed to add or remove one particle from a homogeneous system of N bosons on a torus. We focus on the mean-field limit when N becomes large and the strength of… read more here.
Keywords: bose gases; energy; homogeneous bose; binding energy ... See more keywords
Frustrated quantum magnetism with Bose gases in triangular optical lattices at negative absolute temperatures
Sign Up to like & getrecommendations! Published in 2019 at "Communications Physics"
DOI: 10.1038/s42005-020-0323-5
Abstract: Quantum antiferromagnets with geometrical frustration exhibit rich many-body physics but are hard to simulate by means of classical computers. Although quantum-simulation studies for analyzing such systems are thus desirable, they are still limited to high-temperature… read more here.
Keywords: bose gases; quantum simulation; lattices negative; optical lattices ... See more keywords
Quantum crystallography of Rydberg-dressed Bose gases on a square lattice
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DOI: 10.1103/physreva.95.013631
Abstract: We numerically investigate the quantum crystallographic phases of a Rydberg-dressed Bose gas loaded on a square lattice by using the mean-field Gross--Pitaevskii model. For a relatively weak lattice confinement, the phases of ground state undergo… read more here.
Keywords: bose gases; quantum crystallography; dressed bose; crystallography rydberg ... See more keywords
Response of the Higgs amplitude mode of superfluid Bose gases in a three-dimensional optical lattice
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DOI: 10.1103/physreva.97.043628
Abstract: We study the Higgs mode of superfluid Bose gases in a three-dimensional optical lattice, which emerges near the quantum phase transition to the Mott insulator at commensurate fillings. Specifically, we consider responses of the Higgs… read more here.
Keywords: bose gases; gases three; response; mode superfluid ... See more keywords
Equation of state of the one- and three-dimensional Bose-Bose gases
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DOI: 10.1103/physreva.97.063605
Abstract: We calculate the equation of state of Bose-Bose gases in one and three dimensions in the framework of an effective quantum field theory. The beyond-mean-field approximation at zero-temperature and the one-loop finite-temperature results are obtained… read more here.
Keywords: bose gases; bose bose; one three; equation state ... See more keywords
Large-Scale Description of Interacting One-Dimensional Bose Gases: Generalized Hydrodynamics Supersedes Conventional Hydrodynamics.
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DOI: 10.1103/physrevlett.119.195301
Abstract: The theory of generalized hydrodynamics (GHD) was recently developed as a new tool for the study of inhomogeneous time evolution in many-body interacting systems with infinitely many conserved charges. In this Letter, we show that… read more here.
Keywords: bose gases; generalized hydrodynamics; conventional hydrodynamics; one dimensional ... See more keywords