'Vacuum-like' Hadamard states for quantum fields on curved spacetimes

Link:
Autor/in:
Erscheinungsjahr:
2014
Medientyp:
Text
Schlagworte:
  • Quantum field theory
  • Space-time
  • Quantum fields
  • Gravitation
  • Black Holes (Astronomy)
  • Models
  • Quantum field theory
  • Space-time
  • Quantum fields
  • Gravitation
  • Black Holes (Astronomy)
  • Models
Beschreibung:
  • We present a modification of the recently proposed Sorkin-Johnston states for scalar free quantum fields on a class of globally hyperbolic spacetimes possessing compact Cauchy hypersurfaces. The modification relies on a smooth cutoff of the commutator function and leads always to Hadamard states, in contrast to the original Sorkin-Johnston states. The modified Sorkin-Johnston states are, however, due to the smoothing no longer uniquely associated to the spacetime.
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/2f65d9f1-a105-484d-9027-9c7ba20be168