On quantum quenches at one loop

  • Mikhail GoykhmanEmail author
  • Tom Shachar
  • Michael Smolkin
Open Access
Regular Article - Theoretical Physics


We study global quenches in a number of interacting quantum field theory models away from the conformal regime. We conduct a perturbative renormalization at one-loop level and track the modifications of the quench protocol induced by the renormalization group flow. The scaling of various observables at early times is evaluated in the regime of rapid quench rates, with a particular emphasis placed on the leading order effects that cannot be recovered using the finite order conformal perturbation theory. We employ the canonical ideas of effective action to verify our results and discuss a potential route towards understanding the late time dynamics.


Conformal Field Theory Renormalization Group Effective Field Theories Nonperturbative Effects 


Open Access

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Copyright information

© The Author(s) 2019

Authors and Affiliations

  • Mikhail Goykhman
    • 1
    Email author
  • Tom Shachar
    • 1
  • Michael Smolkin
    • 1
  1. 1.The Racah Institute of PhysicsThe Hebrew University of JerusalemSderot MagnesIsrael

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