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On quantum quenches at one loop
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DOI：10.1007/JHEP01(2019)022.png)
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摘要
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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.
Keyword:
Conformal Field Theory
Renormalization Group
Effective Field Theories
Nonperturbative Effects
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5.5
论文数:
4.0W
被引数:
13.7W
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