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PUBDB-2018-03605

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Thermodynamics of Quantum Fields in Nonstationary Spacetimes

Fredenhagen, K.Extern* ; Hack, T.-P. ; Pinamonti, N.

2018
Verlag Deutsches Elektronen-Synchrotron Hamburg
ISBN: 9783945931219

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Please use a persistent id in citations: doi:10.3204/PUBDB-2018-00782/C7

Abstract: Quantum field theory (QFT) on non-stationary spacetimes is well understood from the side of the algebra of observables. The state space, however, is largely unexplored, due to the non-existence of distinguished states (vacuum, scattering states, thermal states). Project C7 of the SFB 676 was focused on characterisations of states by asymptotic conditions, e.g. holography (in case the boundary has sufficiently many symmetries), on a precise version of an approximate particle interpretation (for instance in Robertson--Walker spacetimes) and on the determination in terms of expectation values of locally covariant fields. Additionally, the backreaction of quantum matter fields on the curvature as well as the perturbative quantisation of the Einstein--Klein--Gordon system in the case of a cosmological background have been investigated. Finally, a detailed analysis and construction of equilibrium states for interacting field theories has been performed.

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Contributing Institute(s):

1. Uni Hamburg / Theorie (UNI/TH)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)
2. DFG project 13245592 - SFB 676: Teilchen, Strings und frühes Universum: Struktur von Materie und Raum-Zeit (13245592) (13245592)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2018

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Database coverage:
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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book Haller, J. (Editor)Extern* ; Grefe, M. (Editor)DESY*
Particles, strings and the early universe: The structure of matter and space-time. Research results of the Collaborative Research Centre SFB 676 in Hamburg. July 2006-June 2018 Universität Hamburg and DESY
Hamburg : Verlag Deutsches Elektronen-Synchrotron 421 pages (2018) [10.3204/PUBDB-2018-00782]2018     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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