Localization in a QFT model

Giuseppe Compagno, Fabrizio Buscemi

Risultato della ricerca: Article

1 Citazioni (Scopus)

Abstract

Localization properties of a QFT model, consisting of a quantum scalar field interacting linearly with a classical localized source, are investigated using various approaches present in the literature. We evaluate, to any order of the field–matter coupling constant, the time evolution of average values of one-point localization observables and scalar product between the quantum field state of the evolving system and localized states. We show that the appearance of nonlocality can be connected to nonlocal properties of localized states used or to the fact that localization operators do not satisfy the microcausality principle and therefore does not imply the violation of causality
Lingua originaleEnglish
pagine (da-a)301-308
Numero di pagine8
RivistaOPEN SYSTEMS & INFORMATION DYNAMICS
Volume13
Stato di pubblicazionePublished - 2006

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All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Mathematical Physics

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