Published December 15, 2009 | Version v1
Journal article

Bianchi I model in terms of nonstandard loop quantum cosmology: Classical dynamics

  • 1. Theoretical Physics Department, Institute for Nuclear Studies Hoza 69, 00-681 Warsaw (Poland)

Description

The cosmological singularities of the Bianchi I universe are analyzed in the setting of loop geometry underlying the loop quantum cosmology. We solve the Hamiltonian constraint of the theory and find the Lie algebra of elementary observables. Physical compound observables are defined in terms of elementary ones. Modification of classical theory by holonomy around a loop removes the singularities. However, our model has a free parameter that cannot be determined within our method. Testing the model by the data of observational cosmology may be possible after quantization of our modified classical theory.

Additional details

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
80
Journal Issue
12
Journal Page Range
p. 124033-124033.7
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41060067
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
COSMOLOGY; HAMILTONIANS; LIE GROUPS; QUANTIZATION; SIMULATION; SINGULARITY; UNIVERSE
Descriptors DEC
MATHEMATICAL OPERATORS; QUANTUM OPERATORS; SYMMETRY GROUPS

Optional Information

Notes
(c) 2009 The American Physical Society