Quantum Breathing of an Impurity in a One-dimensional Bath of Interacting Bosons
arXiv:1206.3984 · doi:10.1103/PhysRevLett.110.015302
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.
10 pages, 7 figures, main text and supplementary material merged in a single PRB style document
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- Entanglement control via reservoir engineering in ultracold atomic gases
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- Microscopic theory of ionic motion in solids
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