Scalar fields and exact invariants in a Friedmann-Robertson-Walker spacetime

Journal Article · Tue Dec 14 23:00:00 EST 2004 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.70.123523· OSTI ID:20698232

Carvalho, A.M. de M; Furtado, Claudio; Pedrosa, I A ^[1]

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1. Departamento de Fisica, CCEN, Universidade Federal da Paraiba, Caixa Postal 5008, 58051-970 Joao Pessoa, PB (Brazil)

In this work we study scalar fields in a Friedmann-Robertson-Walker space-time. We use the invariant operator formulation of Lewis and Riesenfeld in order to study the behavior of scalar fields placed in the Friedmann-Robertson-Walker space-time. In addition, we construct the coherent states in this background and establish the existence of squeezed states.

• OSTI ID: 20698232
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 12 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGY
EIGENSTATES
EINSTEIN FIELD EQUATIONS
GRAVITATIONAL WAVES
QUANTUM GRAVITY
SCALAR FIELDS
SPACE-TIME