Entanglement and thermalization
In a quantum field theory, apparent thermalization can be a consequence of entanglement as opposed to scatterings. We discuss here how this can help to explain open puzzles such as the success of thermal models in electron-positron collisions. It turns out that an expanding relativistic string descr...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) Konferenzschrift |
| Sprache: | Englisch |
| Veröffentlicht: |
22 January 2019
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| In: |
Nuclear physics. A, Nuclear and hadronic physics
Year: 2019, Jahrgang: 982, Pages: 819-822 |
| ISSN: | 1873-1554 |
| DOI: | 10.1016/j.nuclphysa.2018.12.008 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1016/j.nuclphysa.2018.12.008 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0375947418304354 
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| Verfasserangaben: | Jürgen Berges, Stefan Floerchinger, Raju Venugopalan |
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| 520 | |a In a quantum field theory, apparent thermalization can be a consequence of entanglement as opposed to scatterings. We discuss here how this can help to explain open puzzles such as the success of thermal models in electron-positron collisions. It turns out that an expanding relativistic string described by the Schwinger model (which also underlies the Lund model) has at early times an entanglement entropy that is extensive in rapidity. At these early times, the reduced density operator is of thermal form, with an entanglement temperature Tτ=ħ/(2πkBτ), even in the absence of any scatterings. | ||
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