Zobrazeno 1 - 10
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pro vyhledávání: '"Pálmai T"'
Autor:
Palmai, T.
Publikováno v:
Physics Letters B (2016) pp. 439-445
A new numerical approach to entanglement entropies of the Renyi type is proposed for one-dimensional quantum field theories. The method extends the truncated conformal spectrum approach and we will demonstrate that it is especially suited to study th
Externí odkaz:
http://arxiv.org/abs/1605.00444
Publikováno v:
Phys. Rev. D 94, 045003 (2016)
In this paper we study a (1+1)-dimensional version of the famous Nambu-Jona-Lasinio model of Quantum Chromodynamics (QCD2) both at zero and finite hadron density. We use non-perturbative techniques (non-Abelian bosonization and Truncated Conformal Sp
Externí odkaz:
http://arxiv.org/abs/1601.02979
Autor:
Palmai, T.
Publikováno v:
Phys. Rev. B 92, 235433 (2015)
I discuss the relationship between edge exponents in the statistics of work done, dynamical phase transitions, and the role of different kinds of excitations appearing when a non-equilibrium protocol is performed on a closed, gapped, one-dimensional
Externí odkaz:
http://arxiv.org/abs/1506.08200
Publikováno v:
Nucl. Phys. B899 (2015) 547-569
We study the $SU(2)_k$ Wess-Zumino-Novikov-Witten (WZNW) theory perturbed by the trace of the primary field in the adjoint representation, a theory governing the low-energy behaviour of a class of strongly correlated electronic systems. While the mod
Externí odkaz:
http://arxiv.org/abs/1505.03860
Autor:
Pálmai, T.
Publikováno v:
Phys. Rev. B 90, 161404(R) (2014)
We study entanglement via the subsystem purity relative to bipartitions of arbitrary excited states in (1+1)-dimensional conformal field theory, equivalent to the scaling limit of one dimensional quantum critical systems. We compute the exact subpuri
Externí odkaz:
http://arxiv.org/abs/1406.3182
Autor:
Pálmai, T., Takács, G.
We consider diagonal matrix elements of local operators between multi-soliton states in finite volume in the sine-Gordon model, and formulate a conjecture regarding their finite size dependence which is valid up to corrections exponential in the volu
Externí odkaz:
http://arxiv.org/abs/1209.6034
Multi-soliton form factors in sine-Gordon theory from the bootstrap are compared to finite volume matrix elements computed using the truncated conformal space approach. We find convincing agreement, and resolve most of the issues raised in a previous
Externí odkaz:
http://arxiv.org/abs/1112.6322
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