AbstractWe find an exact classical solution in Euclidean gravity coupled to a scalar field with a particular form of potential commonly used in tachyon cosmology. This solution represents a tunneling between two vacua
Brane cosmology takes the unconventional form $H\sim \sqrt{\rho}$. To recover the standard cosmology...
AbstractIn this Letter, we consider a model of tachyon with a non-minimal coupling to gravity and st...
We consider a tachyon field whose Fourier components correspond to spatial momenta with modulus smal...
Results of a general study on the dynamics of cosmological scalar fields with arbitrary potentials a...
It is shown that in the theory of discrete quantum gravity the cosmological constant problem can be ...
We present the effective field equations obtained from a generalized gravity action with Euler-Poinc...
We study conformal gravity in d = 2 + 1, where the Cotton tensor is equated to a — necessarily trace...
We show that the physical requirement of flux conservation can substitute for the usual matching con...
AbstractWe employ the ‘square root’ of the Maxwell Lagrangian (i.e. FμνFμν), coupled with gravity to...
Semi-classical gravity combines classical treatment of the gravitational field with quantum mechanic...
Bianchi -I, -III, and FRW type models minimally coupled to a massive spatially homogeneous scalar fi...
We consider the stabilization of de Sitter brane-world. The scalar field bulk-brane theory produces ...
Using the so(2,1) Lie algebra and the Baker, Campbell and Hausdorff formulas, the Green's function f...
We show that the Friedmann-Lemaitre-Robertson-Walker equations with scalar field and perfect fluid m...
A regular method is suggested for constructing vortex-like solutions with cylindrical symmetry in th...
Brane cosmology takes the unconventional form $H\sim \sqrt{\rho}$. To recover the standard cosmology...
AbstractIn this Letter, we consider a model of tachyon with a non-minimal coupling to gravity and st...
We consider a tachyon field whose Fourier components correspond to spatial momenta with modulus smal...
Results of a general study on the dynamics of cosmological scalar fields with arbitrary potentials a...
It is shown that in the theory of discrete quantum gravity the cosmological constant problem can be ...
We present the effective field equations obtained from a generalized gravity action with Euler-Poinc...
We study conformal gravity in d = 2 + 1, where the Cotton tensor is equated to a — necessarily trace...
We show that the physical requirement of flux conservation can substitute for the usual matching con...
AbstractWe employ the ‘square root’ of the Maxwell Lagrangian (i.e. FμνFμν), coupled with gravity to...
Semi-classical gravity combines classical treatment of the gravitational field with quantum mechanic...
Bianchi -I, -III, and FRW type models minimally coupled to a massive spatially homogeneous scalar fi...
We consider the stabilization of de Sitter brane-world. The scalar field bulk-brane theory produces ...
Using the so(2,1) Lie algebra and the Baker, Campbell and Hausdorff formulas, the Green's function f...
We show that the Friedmann-Lemaitre-Robertson-Walker equations with scalar field and perfect fluid m...
A regular method is suggested for constructing vortex-like solutions with cylindrical symmetry in th...
Brane cosmology takes the unconventional form $H\sim \sqrt{\rho}$. To recover the standard cosmology...
AbstractIn this Letter, we consider a model of tachyon with a non-minimal coupling to gravity and st...
We consider a tachyon field whose Fourier components correspond to spatial momenta with modulus smal...
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