Université de GenèveDépartement de Physique ThéoriqueCAP Genève

Renormalization of Composite Operators in time-dependent Backgrounds

29. May 2013
Cite as: 
S. Dresti, A. Riotto [arXiv:1305.6401].
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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.


Département de Physique Théorique
Université de Genève
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