105 citations · 256 across the 16 of their papers we have counts for
5 papers · 1 filter
The stress-energy distributional multipole for both uncharged and charged dust
Jonathan Gratus, Spyridon Talaganis, Willow Sparks
In this paper, we formulate the distributional uncharged and charged stress-energy tensors. These are integrals, along a worldline, of derivatives of the delta-function. These dist…
The Distributional Stress-Energy Quadrupole
Jonathan Gratus, Paolo Pinto, Spyridon Talaganis
We investigate stress-energy tensors constructed from the delta function on a worldline. We concentrate on quadrupoles as they make an excellent model for the dominant source of gr…
Rotating black hole and entropy for modified theories of gravity
Spyridon Talaganis, Ali Teimouri
In this paper we obtain the entropy of the Kerr black hole for a number of modified theories of gravity. We show that as long as the deviation from Einstein Hilbert term consists p…
Generalised Boundary Terms for Higher Derivative Theories of Gravity
Ali Teimouri, Spyridon Talaganis, James Edholm +1
In this paper we wish to find the corresponding Gibbons-Hawking-York term for the most general quadratic in curvature gravity by using Coframe slicing within the Arnowitt-Deser-Mis…
String-Inspired Infinite-Derivative Theories of Gravity: A Brief Overview
Tirthabir Biswas, Spyridon Talaganis
In String Theory there often appears a rather interesting class of higher derivative theories containing an infinite set of derivatives in the form of an exponential. These theorie…