Tachyon Matter in Loop Quantum Cosmology

Details Tachyon Matter in Loop Quantum Cosmology Tachyon Matter in Loop Quantum Cosmology

2006-04-10

arxiv.org/abs/gr-qc/0604050v2

Phys.Rev. D74 (2006) 043501

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, Revtex style. Title changed. Some general comments and references added. No major changes. Accepted for publication i

Scientific paper

10.1103/PhysRevD.74.043501

An analytical approach for studying the cosmological scenario with a homogeneous tachyon field within the framework of loop quantum gravity is developed. Our study is based on the semi-classical regime where space time can be approximated as a continuous manifold, but matter Hamiltonian gets non-perturbative quantum corrections. A formal correspondence between classical and loop quantum cosmology is also established. The Hamilton-Jacobi method for getting exact solutions is constructed and some exact power-law as well as bouncing solutions are presented.

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