325 citations · 952 across the 30 of their papers we have counts for
19 papers · 1 filter
Self-Gravitating Bjorken Flow
Alexander Feinstein
I present a solution to the full Einstein-fluid equations representing a self-gravitating Bjorken flow. The motion and the geometry become inhomogeneous in the plane transversal to…
Generating Black Strings in Higher Dimensions
L. A. López, A. Feinstein, N. Bretón
Starting with a Zipoy-Voorhees line element we construct and study the three parameter family of solutions describing a deformed black string with arbitrary tension.
5D gravitational waves from complexified black rings
N. Bretón, A. Feinstein, L. A. López
In this paper we construct and briefly study the 5D time-dependent solutions of general relativity obtained via double analytic continuation of the black hole (Myers-Perry) and of…
Formation of a Black String in a Higher Dimensional Vacuum Gravitational Collapse
Alexander Feinstein
We present a solution to the vacuum Einstein Equations which represents a collapse of a gravitational wave in 5 dimensions. Depending on the focal length of the wave, the collapse…
The Homogeneous Scalar Field and the Wet Dark Sides of the Universe
Alberto Diez-Tejedor, Alexander Feinstein
We study the possibility that a generalised real scalar field minimally coupled to gravity could explain both the galactic and the cosmological dark components of the universe. Wit…
Accelerating Universes from Short-Range Interactions
Alberto Diez-Tejedor, Alexander Feinstein
We show that short-range interactions between the fundamental particles in the universe can drive a period of accelerated expansion. This description fits the early universe. In th…