Overlaps after quantum quenches in the sine-Gordon model

D. X. Horváth, G. Takács

Research output: Contribution to journalArticle

16 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)539-545
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume771
DOIs
Publication statusPublished - Aug 10 2017

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Overlaps after quantum quenches in the sine-Gordon model. / Horváth, D. X.; Takács, G.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 771, 10.08.2017, p. 539-545.

Research output: Contribution to journalArticle

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