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arXiv · 1704.00594

Overlaps after quantum quenches in the sine-Gordon model

D. X. Horvath·G. Takacs
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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 are used to confirm the validity of a previously proposed analytical Ansatz for the initial state in the sinh-Gordon quench.

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BibTeXRIS

D. X. Horvath, G. Takacs. 2017-04-03. Overlaps after quantum quenches in the sine-Gordon model. https://doi.org/10.1016/j.physletb.2017.05.087

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