Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model

We study the dynamics of a classical disordered macroscopic model completely isolated from the environment reproducing, in a classical setting, the 'quantum quench' protocol. We show that, depending on the pre and post quench parameters, the system approaches equilibrium, succeeding to act...

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Autores principales:	Cugliandolo, L.F., Lozano, G.S., Nessi, E.N.
Formato:	JOUR
Materias:	ergodicity breaking quantum quenches spin glasses
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17425468_v2017_n8_p_Cugliandolo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_17425468_v2017_n8_p_Cugliandolo
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spelling	todo:paper_17425468_v2017_n8_p_Cugliandolo2023-10-03T16:30:24Z Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model Cugliandolo, L.F. Lozano, G.S. Nessi, E.N. ergodicity breaking quantum quenches spin glasses We study the dynamics of a classical disordered macroscopic model completely isolated from the environment reproducing, in a classical setting, the 'quantum quench' protocol. We show that, depending on the pre and post quench parameters, the system approaches equilibrium, succeeding to act as a bath on itself, or remains out of equilibrium, in two different ways. In the latter one, the system stays confined in a metastable state in which it undergoes stationary dynamics characterised by a single temperature. In the other, the system ages and its dynamics are characterised by two temperatures associated with observations made at short and long time differences (high and low frequencies). The parameter dependence of the asymptotic states is rationalised in terms of a dynamic phase diagram with one equilibrium and two out of equilibrium phases. Aspects of pre-thermalisation are observed and discussed. Similarities and differences with the dynamics of the dissipative model are also explained. © 2017 IOP Publishing Ltd and SISSA Medialab srl. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17425468_v2017_n8_p_Cugliandolo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	ergodicity breaking quantum quenches spin glasses
spellingShingle	ergodicity breaking quantum quenches spin glasses Cugliandolo, L.F. Lozano, G.S. Nessi, E.N. Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model
topic_facet	ergodicity breaking quantum quenches spin glasses
description	We study the dynamics of a classical disordered macroscopic model completely isolated from the environment reproducing, in a classical setting, the 'quantum quench' protocol. We show that, depending on the pre and post quench parameters, the system approaches equilibrium, succeeding to act as a bath on itself, or remains out of equilibrium, in two different ways. In the latter one, the system stays confined in a metastable state in which it undergoes stationary dynamics characterised by a single temperature. In the other, the system ages and its dynamics are characterised by two temperatures associated with observations made at short and long time differences (high and low frequencies). The parameter dependence of the asymptotic states is rationalised in terms of a dynamic phase diagram with one equilibrium and two out of equilibrium phases. Aspects of pre-thermalisation are observed and discussed. Similarities and differences with the dynamics of the dissipative model are also explained. © 2017 IOP Publishing Ltd and SISSA Medialab srl.
format	JOUR
author	Cugliandolo, L.F. Lozano, G.S. Nessi, E.N.
author_facet	Cugliandolo, L.F. Lozano, G.S. Nessi, E.N.
author_sort	Cugliandolo, L.F.
title	Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model
title_short	Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model
title_full	Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model
title_fullStr	Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model
title_full_unstemmed	Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model
title_sort	non equilibrium dynamics of isolated disordered systems: the classical hamiltonian p-spin model
url	http://hdl.handle.net/20.500.12110/paper_17425468_v2017_n8_p_Cugliandolo
work_keys_str_mv	AT cugliandololf nonequilibriumdynamicsofisolateddisorderedsystemstheclassicalhamiltonianpspinmodel AT lozanogs nonequilibriumdynamicsofisolateddisorderedsystemstheclassicalhamiltonianpspinmodel AT nessien nonequilibriumdynamicsofisolateddisorderedsystemstheclassicalhamiltonianpspinmodel
_version_	1807317652853489664

Non equilibrium dynamics of isolated disordered systems: The classical Hamiltonian p-spin model

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