Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-05-02
Gen.Rel.Grav. 37 (2005) 297-311
Physics
High Energy Physics
High Energy Physics - Theory
17 pages, revised, title shortened, to appear in Gen. Rel. Grav
Scientific paper
10.1007/s10714-005-0020-4
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.
No associations
LandOfFree
Generalizations of normal ordering and applications to quantization in classical backgrounds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Generalizations of normal ordering and applications to quantization in classical backgrounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generalizations of normal ordering and applications to quantization in classical backgrounds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-232298