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New non perturbative methods for out-of-equilibrium quantum field theory

Total Cost €


EC-Contrib. €






Project "NpQFT-NEq" data sheet

The following table provides information about the project.


Organization address
postcode: 3584 CS

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Netherlands [NL]
 Project website
 Total cost 177˙598 €
 EC max contribution 177˙598 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2017
 Duration (year-month-day) from 2017-05-01   to  2019-04-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITEIT UTRECHT NL (UTRECHT) coordinator 177˙598.00


 Project objective

A full understanding of the out-of-equilibrium dynamics of many-body quantum systems is one of the ultimate goals of statistical physics. It is often extremely difficult to compute how physical quantities evolve with time in these settings, and to know when and how these systems eventually can reach some form of equilibrium. This difficulty is specially marked in systems described by quantum field theory, where non equilibrium dynamics are still less well understood than in discrete lattice models and quantum spin chains.

Recent years have seen many developments of powerful non perturbative methods for understanding equilibrium quantum field theory, from different areas of physics. There seems, however, to be a disconnection between the plethora of new techniques developed in areas like high energy physics, nuclear physics, and cosmology, and the few applications these have seen in some of the younger active disciplines in non equilibrium quantum field theory, such as understanding the time evolution of observables and equilibration dynamics in low dimensional and strongly correlated systems.

The main aim of this proposal is to implement an interdisciplinary approach to understand out-of-equilibrium physics, and quantum field theory in particular, borrowing and developing techniques from areas of high energy physics, such as non Abelian gauge theories, supersymmetric field theories and resurgent transseries, and from condensed matter physics, such as Bethe ansatz solutions and new quasilocal conserved quantities for integrable lattice models. This will provide several new analytical methods to approach non equilibrium field theory that go beyond perturbation theory and methods based on integrability. The success of this action will be ensured by the interdisciplinary backgrounds and expertise of both, the applicant and the host, as well as the diversity and opportunity for collaborations found at the host institution.


year authors and title journal last update
List of publications.
2019 Axel Cortés Cubero, Miłosz Panfil
Thermodynamic bootstrap program for integrable QFT’s: form factors and correlation functions at finite energy density
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP01(2019)104
Journal of High Energy Physics 2019/1 2019-09-30
2018 Axel Cortes Cubero
Time evolution of effective central charge and signatures of RG irreversibility after a quantum quench
published pages: , ISSN: 2542-4653, DOI: 10.21468/SciPostPhys.4.3.016
SciPost Physics 4/3 2019-09-30
2018 Tatjana Puškarov, Axel Cortés Cubero
Machine learning algorithms based on generalized Gibbs ensembles
published pages: 103102, ISSN: 1742-5468, DOI: 10.1088/1742-5468/aae025
Journal of Statistical Mechanics: Theory and Experiment 2018/10 2019-09-30
2017 Axel Cortés Cubero, Dirk Schuricht
Quantum quench in the attractive regime of the sine-Gordon model
published pages: 103106, ISSN: 1742-5468, DOI: 10.1088/1742-5468/aa8c2e
Journal of Statistical Mechanics: Theory and Experiment 2017/10 2019-09-30
2018 Axel Cortes Cubero
Integrable Floquet QFT: Elasticity and factorization under periodic driving
published pages: , ISSN: 2542-4653, DOI: 10.21468/SciPostPhys.5.3.025
SciPost Physics 5/3 2019-09-30

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