Renormalization of composite operators in time-dependent backgrounds

Dresti, Simone; Riotto, Antonio Walter

doi:10.1016/j.nuclphysb.2013.06.019

Scientific article

English

Renormalization of composite operators in time-dependent backgrounds

ContributorsDresti, Simone; Riotto, Antonio Walter

Published inNuclear physics. B, vol. 874, no. 3, p. 792-807

Publication date2013

Abstract

We study the phenomenon of composite operator renormalization and mixing in systems where time-translational invariance is broken and the evolution is out-of-equilibrium. We show that composite operators mix also through non-local memory terms which persist for periods whose duration is set by the mass scales in the problem.

Affiliation entities

Faculté des sciences / Section de physique / Département de physique théorique

Citation (ISO format)

DRESTI, Simone, RIOTTO, Antonio Walter. Renormalization of composite operators in time-dependent backgrounds. In: Nuclear physics. B, 2013, vol. 874, n° 3, p. 792–807. doi: 10.1016/j.nuclphysb.2013.06.019

Article (Published version)

Identifiers

PID : unige:36475
DOI : 10.1016/j.nuclphysb.2013.06.019

Additional URL for this publicationhttp://linkinghub.elsevier.com/retrieve/pii/S0550321313003477

Journal ISSN0550-3213

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Renormalization of composite operators in time-dependent backgrounds

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