Published December 1989
| Version v1
Journal article
Gaussian states in de Sitter spacetime and the evolution of semiclassical density perturbations. (Part) 1. Homogeneous mode
Creators
- 1. Tata Institute of Fundamental Research, Bombay (India). Astrophyics Group
Description
The evolution of Gaussian quantum states in the de Sitter phase of the early universe is investigated. The potential is approximated by that of an inverted oscillator. The origin and magnitude of the density perturbations is studied with special emphasis on the nature of the semiclassical limits. (author). 14 refs
Additional details
Additional titles
- Augmented title (English)
- toy-model for inflationary universe
Publishing Information
- Journal Title
- Journal of Astrophysics and Astronomy
- Journal Volume
- 10
- Journal Issue
- 4
- Series
- J. Astrophys. Astron.
- Journal Page Range
- 391-406
- ISSN
- 0250-1319
- CODEN
- JASRD
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 21088898
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- COSMOLOGICAL MODELS; COSMOLOGY; DENSITY; DISTRIBUTION FUNCTIONS; DISTURBANCES; EXPANSION; FOURIER TRANSFORMATION; GAUSSIAN PROCESSES; SPACE-TIME; UNIVERSE
- Descriptors DEC
- INTEGRAL TRANSFORMATIONS; MATHEMATICAL MODELS; PHYSICAL PROPERTIES; TRANSFORMATIONS