Universität zu Köln

Vodret, Michele, Chiocchetta, Alessio ORCID: 0000-0003-1782-966X and Gambassi, Andrea (2022). Universal amplitudes ratios for critical aging via functional renormalization group. J. Phys. A-Math. Theor., 55 (26). BRISTOL: IOP Publishing Ltd. ISSN 1751-8121

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Abstract

We discuss how to calculate non-equilibrium universal amplitude ratios in the functional renormalization group approach, extending its applicability. In particular, we focus on the critical relaxation of the Ising model with non-conserved dynamics (model A) and calculate the universal amplitude ratio associated with the fluctuation-dissipation ratio of the order parameter, considering a critical quench from a high-temperature initial condition. Our predictions turn out to be in good agreement with previous perturbative renormalization-group calculations and Monte Carlo simulations.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Vodret, Michele UNSPECIFIED UNSPECIFIED UNSPECIFIED Chiocchetta, Alessio UNSPECIFIED orcid.org/0000-0003-1782-966X UNSPECIFIED Gambassi, Andrea UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-679324
DOI:	10.1088/1751-8121/ac7182
Journal or Publication Title:	J. Phys. A-Math. Theor.
Volume:	55
Number:	26
Date:	2022
Publisher:	IOP Publishing Ltd
Place of Publication:	BRISTOL
ISSN:	1751-8121
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NONEQUILIBRIUM CRITICAL RELAXATION; PHASE-TRANSITIONS; DYNAMICS Multiple languages Physics, Multidisciplinary; Physics, Mathematical Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/67932