We study the relaxation dynamics of strongly interacting quantum systems that display a kind of many-body localization in spite of their translation-invariant Hamiltonian. We show that dynamics starting from a random initial configuration is nonperturbatively slow in the hopping strength, and potentially genuinely nonergodic in the thermodynamic limit. In finite systems with periodic boundary conditions, density relaxation takes place in two stages, which are separated by a long out-of-equilibrium plateau whose duration diverges exponentially with the system size. We estimate the phase boundary of this quantum glass phase, and discuss the role of local resonant

Dynamics in many-body localized quantum systems without disorder

Schiulaz, Mauro;Silva, Alessandro;
2015-01-01

Abstract

We study the relaxation dynamics of strongly interacting quantum systems that display a kind of many-body localization in spite of their translation-invariant Hamiltonian. We show that dynamics starting from a random initial configuration is nonperturbatively slow in the hopping strength, and potentially genuinely nonergodic in the thermodynamic limit. In finite systems with periodic boundary conditions, density relaxation takes place in two stages, which are separated by a long out-of-equilibrium plateau whose duration diverges exponentially with the system size. We estimate the phase boundary of this quantum glass phase, and discuss the role of local resonant
2015
91
18
1
9
184202
https://arxiv.org/abs/1410.4690
https://doi.org/10.1103/PhysRevB.91.184202
Schiulaz, Mauro; Silva, Alessandro; Muller, Markus
File in questo prodotto:
File Dimensione Formato  
PhysRevB.91.184202.pdf

non disponibili

Tipologia: Versione Editoriale (PDF)
Licenza: Non specificato
Dimensione 637.53 kB
Formato Adobe PDF
637.53 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/11765
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 114
  • ???jsp.display-item.citation.isi??? 122
social impact