NONCLASSICAL SCALAR FIELD IN THE FRW UNIVERSE

被引：4
作者：
Venkataratnam, K. K. [1 ]
Suresh, P. K. [1 ]
机构：
[1] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2010年 / 19卷 / 01期
关键词：
Semiclassical gravity; scalar field; particle creation; nonclassical states; Q parameter; PARTICLE CREATION; STATE REPRESENTATION; PHOTON STATISTICS; QUANTIZED-FIELDS; ARBITRARY SPIN; BACK-REACTION; QUANTUM; INFLATION; ENTROPY; MODEL;
D O I：
10.1142/S021827181001621X
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Nonclassical representation of a minimally coupled scalar field in the open and closed FRW universe, is studied in the semiclassical theory of gravity. Particle production of a nonclassical scalar field in the coherent and squeezed state formalisms in the open FRW universe is examined. Numerical solutions to the semiclassical Friedmann equations are obtained for both the closed and open models in the coherent and squeezed state formalisms. Mandel's Q parameter of the quantum optics is studied in the cosmological context with associated cosmological parameters, in the semiclassical theory of gravity.
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页码：37 / 61
页数：25
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