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Pregled bibliografske jedinice broj: 199450

Časopis

Autori: Nikolić, Hrvoje
Naslov: Generalizations of normal ordering and applications to quantization in classical backgrounds
Izvornik: General relativity and gravitation (0001-7701) 37 (2005), 2; 297-311
Vrsta rada: članak
Ključne riječi: normal ordering; quantization; classical background
Sažetak:
A nonlocal method of extracting the positive (or the negative) frequency part of a field, based on knowledge of a 2-point function, leads to certain natural generalizations of the normal ordering of quantum fields in classical gravitational and electromagnetic backgrounds and illuminates the origin of the recently discovered nonlocalities related to a local description of particles. A local description of particle creation by gravitational backgrounds is given, with emphasis on the case of black-hole evaporation. The formalism reveals a previously hidden relation between various definitions of the particle current and those of the energy-momentum tensor. The implications to particle creation by classical backgrounds, as well as to the relation between vacuum energy, dark matter, and cosmological constant, are discussed.
Projekt / tema: 0098002
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Fizika
URL cjelovitog teksta:
Google Scholar: Generalizations of normal ordering and applications to quantization in classical backgrounds



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