• Rapid Communication

Quantum quenches, dynamical transitions, and off-equilibrium quantum criticality

Bruno Sciolla and Giulio Biroli
Phys. Rev. B 88, 201110(R) – Published 25 November 2013
PDFHTMLExport Citation

Abstract

Several mean-field computations have revealed the existence of an out-of-equilibrium dynamical transition induced by quantum-quenching an isolated system starting from its symmetry-broken phase. In this work we focus on the quantum ϕ4 N-component field theory. By taking into account dynamical fluctuations at the Hartree-Fock level, corresponding to the leading order of the 1/N expansion, we derive the critical properties of the dynamical transition beyond mean-field theory (including at finite temperature). We find diverging time and length scales, dynamic scaling, and aging. Finally, we unveil a relationship with critical coarsening, an off-equilibrium regime that can be induced by quenching from the symmetric toward the symmetry-broken phase.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 12 November 2012

DOI:https://doi.org/10.1103/PhysRevB.88.201110

©2013 American Physical Society

Authors & Affiliations

Bruno Sciolla and Giulio Biroli

  • Institut de Physique Théorique, CEA/DSM/IPhT-CNRS/URA 2306 CEA-Saclay, F-91191 Gif-sur-Yvette, France

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 88, Iss. 20 — 15 November 2013

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×