Quantum Breathing of an Impurity in a One-dimensional Bath of Interacting Bosons
Quantum Gases
2013-01-11 v1 Statistical Mechanics
Abstract
By means of time-dependent density-matrix renormalization-group (TDMRG) we are able to follow the real-time dynamics of a single impurity embedded in a one-dimensional bath of interacting bosons. We focus on the impurity breathing mode, which is found to be well-described by a single oscillation frequency and a damping rate. If the impurity is very weakly coupled to the bath, a Luttinger-liquid description is valid and the impurity suffers an Abraham-Lorentz radiation-reaction friction. For a large portion of the explored parameter space, the TDMRG results fall well beyond the Luttinger-liquid paradigm.
Keywords
Cite
@article{arxiv.1206.3984,
title = {Quantum Breathing of an Impurity in a One-dimensional Bath of Interacting Bosons},
author = {Sebastiano Peotta and Davide Rossini and Marco Polini and Francesco Minardi and Rosario Fazio},
journal= {arXiv preprint arXiv:1206.3984},
year = {2013}
}
Comments
10 pages, 7 figures, main text and supplementary material merged in a single PRB style document