New singularity in anisotropic, time-dependent, maximally Gauss-Bonnet extended gravity

Journal Article · Thu Jul 15 04:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.667· OSTI ID:6426770

Kitaura, T; Wheeler, J T ^[1]

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1. Department of Physics, Utah State University, Logan, Utah 84322 (United States)

Among the solutions for anisotropic, time-dependent, maximally Gauss-Bonnet extended gravity, we find a class of curvature singularities for which the metric components remain finite. These new singularities therefore differ in type from the standard Kasner-like divergences expected for this class of theories. We study perturbative solutions near the singularity and show that there exist solutions with timelike paths that reach the singularity in finite proper time. Solving the equation of geodesic deviation in the same approximation, we show that the comoving coordinate system does not break down at the singularity. A brief classification of the corresponding singularity types in Robertson-Walker cosmologies is also provided.

• OSTI ID: 6426770
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:2; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662110* -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANISOTROPY
EQUATIONS
FIELD EQUATIONS
FIELD THEORIES
MANY-DIMENSIONAL CALCULATIONS
METRICS
PERTURBATION THEORY
QUANTUM FIELD THEORY
QUANTUM GRAVITY
SINGULARITY
TIME DEPENDENCE