{ "id": "1702.01729", "version": "v1", "published": "2017-02-06T18:11:31.000Z", "updated": "2017-02-06T18:11:31.000Z", "title": "Quenches from gaussian bosons to Tonks-Girardeau gas: stationary states and effects of a confining potential", "authors": [ "Alvise Bastianello", "Mario Collura", "Spyros Sotiriadis" ], "categories": [ "cond-mat.stat-mech", "cond-mat.quant-gas" ], "abstract": "We consider the general problem of quenching an interacting Bose gas from the noninteracting regime to the strong repulsive case described by the Tonks-Girardeau limit, with the initial state being a gaussian ensemble for the bosons. A generic multi-point correlation function in the steady state can be fully described in terms of a Fredholm-like determinant suitable both for a numerical study and for an analytical study in certain limiting cases. Finally, we extend the study to the presence of a smooth confining potential showing that, in the thermodynamic limit, the time evolution of the two-point function can be mapped to a classical problem in a properly defined phase-space.", "revisions": [ { "version": "v1", "updated": "2017-02-06T18:11:31.000Z" } ], "analyses": { "keywords": [ "confining potential", "stationary states", "tonks-girardeau gas", "gaussian bosons", "generic multi-point correlation function" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }