Dynamics and Thermodynamics of the Low-Temperature Strongly Interacting Bose Gas
Quantum Gases
2022-09-02 v1
Abstract
We measure the zero-temperature equation of state of a homogeneous Bose gas of Li atoms by analyzing the \emph{in-situ} density distributions of trapped samples. For increasing repulsive interactions our data shows a clear departure from mean-field theory and provides a quantitative test of the many-body corrections first predicted in 1957 by Lee, Huang and Yang. We further probe the dynamic response of the Bose gas to a varying interaction strength and compare it to simple theoretical models. We deduce a lower bound for the value of the universal constant that would characterize the universal Bose gas at the unitary limit.
Cite
@article{arxiv.1103.4449,
title = {Dynamics and Thermodynamics of the Low-Temperature Strongly Interacting Bose Gas},
author = {Nir Navon and Swann Piatecki and Kenneth John Günter and Benno Rem and Trong Canh Nguyen and Frédéric Chevy and Werner Krauth and C. Salomon},
journal= {arXiv preprint arXiv:1103.4449},
year = {2022}
}