Relaxation of a high-energy quasiparticle in a one-dimensional Bose gas
Quantum Gases
2010-08-27 v2 Statistical Mechanics
Abstract
We evaluate the relaxation rate of high-energy quasiparticles in a weakly interacting one-dimensional Bose gas. Unlike in higher dimensions, the rate is a nonmonotonic function of temperature, with a maximum at the crossover to the state of suppressed density fluctuations. At the maximum, the relaxation rate may significantly exceed its zero-temperature value. We also find the dependence of the differential inelastic scattering rate on the transferred energy. This rate yields information about temperature dependence of local pair correlations.
Keywords
Cite
@article{arxiv.1002.0630,
title = {Relaxation of a high-energy quasiparticle in a one-dimensional Bose gas},
author = {Shina Tan and Michael Pustilnik and Leonid I. Glazman},
journal= {arXiv preprint arXiv:1002.0630},
year = {2010}
}