Anisotropic fluids with two-perfect-fluid components

Journal Article · Fri Aug 15 04:00:00 EDT 1980 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.22.807· OSTI ID:5057220

Letelier, P S

A two-perfect-fluid model of an anisotropic fluid is presented. The energy-momentum tensor associated with the sum of two perfect fluids, one perfect and one null fluid, and two null fluids is examined. Special attention is devoted to the study of the stress tensor. The special case wherein the two perfect fluids are irrotational is studied. A relation between the Einstein equations for this particular case and the Einstein equations for a massless complex scalar field is found. The general solution of Einstein equations for an anisotropic fluid constructed with two-null-fluid components in the plane-symmetric case is discussed. The energy-momentum tensor of a cloud of strings and the energy-momentum tensor of an anisotropic fluid formed by two null fluids are compared.

• Research Organization: Departamento de Fisica, Universidade de Brasilia, 70.910 Brasilia, Brazil
• OSTI ID: 5057220
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 22:4; ISSN PRVDA
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL MODELS
EINSTEIN FIELD EQUATIONS
ELEMENTARY PARTICLES
ENERGY-MOMENTUM TENSOR
EQUATIONS
FIELD EQUATIONS
FIELD THEORIES
FLUIDS
GENERAL RELATIVITY THEORY
GRAVITATIONAL FIELDS
KERR METRIC
MASSLESS PARTICLES
MATHEMATICAL MODELS
METRICS
SCALAR FIELDS
TENSORS