Zobrazeno 1 - 10
of 5 152
pro vyhledávání: '"Horváth, D"'
We study the effects of integrability breaking on the relaxation dynamics of the (double) sine-Gordon model. Compared to previous studies, we apply an alternative viewpoint motivated by open-system physics by separating the phase field into homogeneo
Externí odkaz:
http://arxiv.org/abs/2408.14428
Publikováno v:
Comput. Phys. Commun. 277 (2022) 108376
Truncated Conformal Space Approach (TCSA) is a highly efficient method to compute spectra, operator matrix elements and time evolution in quantum field theories defined as relevant perturbations of 1+1-dimensional conformal field theories. However, s
Externí odkaz:
http://arxiv.org/abs/2201.06509
Publikováno v:
SciPost Phys. 12, 144 (2022)
We study inhomogeneous quantum quenches in the attractive regime of the sine-Gordon model. In our protocol, the system is prepared in an inhomogeneous initial state in finite volume by coupling the topological charge density operator to a Gaussian ex
Externí odkaz:
http://arxiv.org/abs/2109.06869
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, B April 2024 549
Akademický článek
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Publikováno v:
Phys. Rev. A 100, 013613 (2019)
We discuss the non-equilibrium time evolution of the phase field in the sine-Gordon model using two very different approaches: the truncated Wigner approximation and the truncated conformal space approach. We demonstrate that the two approaches agree
Externí odkaz:
http://arxiv.org/abs/1809.06789
Publikováno v:
JHEP 08 (2018) 170
We study homogeneous quenches in integrable quantum field theory where the initial state contains zero-momentum particles. We demonstrate that the two-particle pair amplitude necessarily has a singularity at the two-particle threshold. Albeit the exp
Externí odkaz:
http://arxiv.org/abs/1805.08132
Autor:
Süle, P., Bottyán, L., Bujdosó, L., Kovács, Z. E. Horváth D. Kaptás A., Merkel, D. G., Nakanishi, A., Sajti, Sz., Balogh, J.
The chemical mixing at the Fe-on-Ti and Ti-on-Fe, i.e. the bottom and top interfaces of Fe in atomically deposited layers, were studied experimentally and by molecular dynamics simulations of the layer growth. The basic structure and chemical composi
Externí odkaz:
http://arxiv.org/abs/1712.06870
Autor:
Horvath, D. X., Takacs, G.
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
Externí odkaz:
http://arxiv.org/abs/1704.00594
Akademický článek
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