Energy-momentum tensor of perturbed tachyon matter

Journal Article · Fri May 15 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.106005· OSTI ID:21296392

Jokela, Niko ^[1]; Jaervinen, Matti ^[2]; Keski-Vakkuri, Esko ^[3]

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1. Department of Physics, Technion, Haifa 3200 (Israel)
2. Center for High Energy Physics, University of Southern Denmark, Campusvej 55, DK-5230 Odense M (Denmark)
3. Helsinki Institute of Physics, P.O. Box 64, FIN-00014, University of Helsinki (Finland)

We add an initial nonhomogeneous perturbation to an otherwise homogeneous condensing tachyon background and compute its spacetime energy-momentum tensor from world-sheet string theory. We show that in the far future the energy-momentum tensor corresponds to nonhomogeneous pressureless tachyon matter.

• OSTI ID: 21296392
• Journal Information: Physical Review. D, Particles Fields, Vol. 79, Issue 10; Other Information: DOI: 10.1103/PhysRevD.79.106005; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DISTURBANCES
ENERGY-MOMENTUM TENSOR
MATTER
PERTURBATION THEORY
SPACE-TIME
STRING MODELS
STRING THEORY