Horváth, Dávid and Takács, Gábor (2017) Overlaps after quantum quenches in the sine-Gordon model. PHYSICS LETTERS B, 771. pp. 539-545. ISSN 0370-2693
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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 for the first breather overlaps are compared with the analytic continuation of a previously proposed analytical Ansatz for the initial state in a related sinh-Gordon quench, and good agreement is found between the numerical data and the analytical prediction in a large energy range.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science / természettudomány > Q1 Science (General) / természettudomány általában |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 23 May 2023 13:12 |
| Last Modified: | 23 May 2023 13:12 |
| URI: | http://real.mtak.hu/id/eprint/165886 |
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