Gauge-invariant condensation in the nonequilibrium quark-gluon plasma
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 spati...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
12 August 2020
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| In: |
Physical review
Year: 2020, Jahrgang: 102, Heft: 3 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.102.034014 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.102.034014 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.102.034014 
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| Verfasserangaben: | Jürgen Berges, Kirill Boguslavski, Mark Mace, and Jan M. Pawlowski |
| Zusammenfassung: | 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. |
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| Beschreibung: | Gesehen am 29.09.2020 |
| Beschreibung: | Online Resource |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.102.034014 |