Zobrazeno 1 - 10
of 288
pro vyhledávání: '"Kurchan, Jorge"'
The ultraslow dynamics of glass-formers has been explained by two views considered as mutually exclusive: one invokes locally hindered mobility, the other rests on the complexity of the configuration space. Here we demonstrate that the evolution resp
Externí odkaz:
http://arxiv.org/abs/2409.17121
Autor:
Bouverot-Dupuis, Oscar, Pappalardi, Silvia, Kurchan, Jorge, Polkovnikov, Anatoli, Foini, Laura
We study the behavior of two-time correlation functions at late times for finite system sizes considering observables whose (one-point) average value does not depend on energy. In the long time limit, we show that such correlation functions display a
Externí odkaz:
http://arxiv.org/abs/2407.12103
Autor:
Kurchan, Jorge
Supercooled liquids are sometimes described as being composed of a mosaic of patches that may be listed in a `library', each one having some form of non-periodic order. Looking closer, one finds this construction elusive. In attempting to give the no
Externí odkaz:
http://arxiv.org/abs/2406.15820
It is often stated that if one is presented with a snapshot of the positions of the molecules of a glass and one of a liquid, one is unable to tell the difference. Here we argue instead that given several such snapshots taken over a time-interval, ev
Externí odkaz:
http://arxiv.org/abs/2402.05081
Autor:
Kurchan, Jorge
Glassy dynamics have time-reparametrization `softness': glasses fluctuate, and respond to external perturbations, primarily by changing the pace of their evolution. Remarkably, the same situation also appears in toy models of quantum field theory suc
Externí odkaz:
http://arxiv.org/abs/2401.03186
Unitary Designs have become a vital tool for investigating pseudorandomness since they approximate the statistics of the uniform Haar ensemble. Despite their central role in quantum information, their relation to quantum chaotic evolution and in part
Externí odkaz:
http://arxiv.org/abs/2308.06200
Publikováno v:
Quantum 8, 1227 (2024)
We discuss the construction of a microcanonical projection WOW of a quantum operator O induced by an energy window filter W, its spectrum, and the retrieval of canonical many-time correlations from it.
Comment: 18 pages, 4 figures. Updated versi
Comment: 18 pages, 4 figures. Updated versi
Externí odkaz:
http://arxiv.org/abs/2304.10948
Autor:
Pappalardi, Silvia, Kurchan, Jorge
We discuss the generalized quantum Lyapunov exponents $L_q$, defined from the growth rate of the powers of the square commutator. They may be related to an appropriately defined thermodynamic limit of the spectrum of the commutator, which plays the r
Externí odkaz:
http://arxiv.org/abs/2212.10123
Autor:
Kent-Dobias, Jaron, Kurchan, Jorge
We derive the general solution for counting the stationary points of mean-field complex landscapes. It incorporates Parisi's solution for the ground state, as it should. Using this solution, we count the stationary points of two models: one with mult
Externí odkaz:
http://arxiv.org/abs/2207.06161
Autor:
Franz, Silvio, Kurchan, Jorge
In this note we summarize the connections between equilibrium and slow out of equilibrium dynamics in finite dimensional glasses, such as we understand them today. If we assume that a finite-dimensional system is stable with respect to a family of we
Externí odkaz:
http://arxiv.org/abs/2207.05720