{ "id": "1704.00594", "version": "v1", "published": "2017-04-03T13:55:11.000Z", "updated": "2017-04-03T13:55:11.000Z", "title": "Overlaps after quantum quenches in the sine-Gordon model", "authors": [ "D. X. Horvath", "G. Takacs" ], "comment": "13 pages, 4 pdf figures", "categories": [ "cond-mat.stat-mech", "hep-th" ], "abstract": "We present a numerical computation of overlaps in mass quenches in sine-Gordon quantum field theory using truncated conformal space approach (TCSA). To improve the cut-off dependence of the method, we use a novel running coupling definition which has a general applicability in free boson TCSA. The numerical results are used to confirm the validity of a previously proposed analytical Ansatz for the initial state in the sinh-Gordon quench.", "revisions": [ { "version": "v1", "updated": "2017-04-03T13:55:11.000Z" } ], "analyses": { "keywords": [ "quantum quenches", "sine-gordon model", "sine-gordon quantum field theory", "truncated conformal space approach", "free boson tcsa" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }