Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Vasseur R"'
We consider one dimensional many-particle systems that exhibit kinematically protected single-particle excitations over their ground states. We show that momentum and time-resolved 4-point functions of operators that create such excitations diverge l
Externí odkaz:
http://arxiv.org/abs/2411.06167
Autor:
Abanin, D. A., Bardarson, J. H., De Tomasi, G., Gopalakrishnan, S., Khemani, V., Parameswaran, S. A., Pollmann, F., Potter, A. C., Serbyn, M., Vasseur, R.
Publikováno v:
Annals of Physics 427, 168415 (2021)
We re-examine attempts to study the many-body localization transition using measures that are physically natural on the ergodic/quantum chaotic regime of the phase diagram. Using simple scaling arguments and an analysis of various models for which ri
Externí odkaz:
http://arxiv.org/abs/1911.04501
Publikováno v:
In Global and Planetary Change December 2021 207
Autor:
Abanin, D.A., Bardarson, J.H., De Tomasi, G., Gopalakrishnan, S., Khemani, V., Parameswaran, S.A., Pollmann, F., Potter, A.C., Serbyn, M., Vasseur, R.
Publikováno v:
In Annals of Physics April 2021 427
Publikováno v:
In Revue Neurologique June 2020 176(6):439-443
Publikováno v:
Journal of High Energy Physics, Volume 2015, Issue 5, 114
The periodic sl(2|1) alternating spin chain encodes (some of) the properties of hulls of percolation clusters, and is described in the continuum limit by a logarithmic conformal field theory (LCFT) at central charge c=0. This theory corresponds to th
Externí odkaz:
http://arxiv.org/abs/1409.0167
Publikováno v:
Phys. Rev. B 91, 140202 (2015)
We show that the magnetization of a single `qubit' spin weakly coupled to an otherwise isolated disordered spin chain exhibits periodic revivals in the localized regime, and retains an imprint of its initial magnetization at infinite time. We demonst
Externí odkaz:
http://arxiv.org/abs/1407.4476
Publikováno v:
Phys. Rev. B 90, 115101 (2014)
The equilibrium physics of quantum impurities frequently involves a universal crossover from weak to strong reservoir-impurity coupling, characterized by single-parameter scaling and an energy scale $T_K$ (Kondo temperature) that breaks scale invaria
Externí odkaz:
http://arxiv.org/abs/1406.5308
Publikováno v:
Phys. Rev. X 4, 041007 (2014)
The quantum evolution after a metallic lead is suddenly connected to an electron system contains information about the excitation spectrum of the combined system. We exploit this type of "quantum quench" to probe the presence of Majorana fermions at
Externí odkaz:
http://arxiv.org/abs/1405.5865
Publikováno v:
J. Phys. A: Math. Theor. 46 (2013) 494012
Logarithmic Conformal Field Theories (LCFT) play a key role, for instance, in the description of critical geometrical problems (percolation, self avoiding walks, etc.), or of critical points in several classes of disordered systems (transition betwee
Externí odkaz:
http://arxiv.org/abs/1303.2082