Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Karevski, D."'
Autor:
Coppola, M., Karevski, D.
Publikováno v:
Condensed Matter Physics, 2023, vol. 26, No. 1, 13502
We discuss the possibility of defining an emergent local temperature in extended quantum many-body systems evolving out of equilibrium. For the most simple case of free-fermionic systems, we give an explicit formula for the effective temperature in t
Externí odkaz:
http://arxiv.org/abs/2303.01881
Autor:
Karevski, D., Schütz, G. M.
Publikováno v:
SciPost Phys. 6, 068 (2019)
We prove that a recently derived correlation equality between conserved charges and their associated conserved currents for quantum systems far from equilibrium [O.A. Castro-Alvaredo et al., Phys. Rev. X \textbf{6}, 041065 (2016)], is valid under mor
Externí odkaz:
http://arxiv.org/abs/1812.03020
We present a general construction of matrix product states for stationary density matrices of one-dimensional quantum spin systems kept out of equilibrium through boundary Lindblad dynamics. As an application we review the isotropic Heisenberg quantu
Externí odkaz:
http://arxiv.org/abs/1612.03601
Autor:
Karevski, D., Schütz, G. M.
Publikováno v:
Phys. Rev. Lett. 118, 030601 (2017)
We consider space-time correlations in driven diffusive systems which undergo a fluctuation into a regime with an atypically large current or dynamical activity. For a single conserved mass we show that the spatio-temporal density correlations in one
Externí odkaz:
http://arxiv.org/abs/1606.04248
Publikováno v:
Phys. Rev. E 88, 062118 (2013)
We consider an open isotropic Heisenberg quantum spin chain, coupled at the ends to boundary reservoirs polarized in different directions, which sets up a twisting gradient across the chain. Using a matrix product ansatz, we calculate the exact magne
Externí odkaz:
http://arxiv.org/abs/1310.1315
Publikováno v:
Phys. Rev. Lett. 110, 047201 (2013)
We demonstrate that the exact non-equilibrium steady state of the one-dimensional Heisenberg XXZ spin chain driven by boundary Lindblad operators can be constructed explicitly with a matrix product ansatz for the non-equilibrium density matrix where
Externí odkaz:
http://arxiv.org/abs/1211.7010
Publikováno v:
J. Phys. A: Math. Theor. 43 135003 (2010)
We study the transport properties of a one-dimensional hard-core bosonic lattice gas coupled to two particle reservoirs at different chemical potentials which generate a current flow through the system. In particular, the influence of random fluctuat
Externí odkaz:
http://arxiv.org/abs/1003.3755
Publikováno v:
J. Stat. Mech. (2008) P01023
We study zero-temperature XX chains and transverse Ising chains and join an initially separate finite piece on one or on both sides to an infinite remainder. In both critical and non-critical systems we find a typical increase of the entanglement ent
Externí odkaz:
http://arxiv.org/abs/0711.0289
Publikováno v:
Condensed Matter Physics 9 (2006) 319
Many theoretical predictions derived from quantum mechanics have been confirmed experimentally during the last 80 years. However, interpretative aspects have long been subject to debate. Among them, the question of the existence of hidden variables i
Externí odkaz:
http://arxiv.org/abs/physics/0605214
We study the critical behavior of Ising quantum magnets with broadly distributed random couplings (J), such that $P(\ln J) \sim |\ln J|^{-1-\alpha}$, $\alpha>1$, for large $|\ln J|$ (L\'evy flight statistics). For sufficiently broad distributions, $\
Externí odkaz:
http://arxiv.org/abs/cond-mat/0009144