Gauge-invariant condensation in the nonequilibrium quark-gluon plasma
Berges, J., Boguslavski, K., Mace, M., & Pawlowski, J. M. (2020). Gauge-invariant condensation in the nonequilibrium quark-gluon plasma. Physical Review D, 102(3), Article 034014. https://doi.org/10.1103/PhysRevD.102.034014
Published inPhysical Review D
© 2020 the Authors
The large density of gluons, which is present shortly after a nuclear collision at very high energies, can lead to the formation of a condensate. We identify a gauge-invariant order parameter for condensation based on elementary nonperturbative excitations of the plasma, which are described by spatial Wilson loops. Using real-time lattice simulations, we demonstrate that a self-similar transport process towards low momenta builds up a macroscopic zero mode. Our findings reveal intriguing similarities to recent discoveries of condensation phenomena out of equilibrium in table-top experiments with ultracold Bose gases.
PublisherAmerican Physical Society (APS)
ISSN Search the Publication Forum2470-0010
Publication in research information system
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Related funder(s)European Commission
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingThe work is supported by EMMI, the BMBF Grant No. 05P18VHFCA and is part of and supported by the DFG Collaborative Research Centre SFB 1225 (ISOQUANT) as well as by the DFG under Germany’s Excellence Strategy EXC–2181/1–390900948 (the Heidelberg Excellence Cluster STRUCTURES). M. M. is supported by the European Research Council, Grant No. ERC-2015-CoG-681707. This research used resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. The computational results presented have been achieved in part using the Vienna Scientific Cluster (VSC). ...
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