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Born-infeld corrections to the entropy function of heterotic black holes
(2007-06-01)
We use the black hole entropy function to study the effect of Born-Infeld terms on the entropy of extremal black holes in heterotic string theory in four dimensions. We find, that after adding a set of higher curvature ...
Massive vector fields in Kerr-Newman and Kerr-Sen black hole spacetimes
(2020-04-01)
The superradiant instability modes of ultralight massive vector bosons are studied for weakly charged rotating black holes in Einstein-Maxwell gravity (the Kerr- Newman solution) and low-energy heterotic string theory (the ...
Dyonic AdS 4 black hole entropy and attractors via entropy function
(2016-09-01)
Using the Sen’s entropy function formalism, we compute the entropy for the extremal dyonic black hole solutions of theories in the presence of dilaton field coupled to the field strength and a dilaton potential. We solve ...
Forest management intensity affects aquatic communities in artificial tree holes
(Public Library of Science, 2016-05)
Forest management could potentially affect organisms in all forest habitats. However, aquatic communities in water-filled tree-holes may be especially sensitive because of small population sizes, the risk of drought and ...
Phantom accretion by black holes and the generalized second law of thermodynamics
(ELSEVIER SCIENCE BV, 2010)
The accretion of a phantom fluid with non-zero chemical potential by black holes is discussed with basis on the generalized second law of thermodynamics. For phantom fluids with positive temperature and negative chemical ...
Towards coherent optical control of a single hole spin: Rabi rotation of a trion conditional on the spin state of the hole
(Pergamon-Elsevier B.V. Ltd, 2009-09-01)
A hole spin is a potential solid-state q-bit, that may be more robust against nuclear spin induced dephasing than an electron spin. Here we propose and demonstrate the sequential preparation, control and detection of a ...
(Non-adiabatic) string creation on nice slices in Schwarzschild black holes
(2017-04-01)
Nice slices have played a pivotal role in the discussion of the black hole information paradox as they avoid regions of strong spacetime curvature and yet smoothly cut through the infalling matter and the outgoing Hawking ...
Higher dimensional power-Maxwell charged black holes in Einstein and Rastall gravity
(Springer, 2019-05-01)
The black hole solutions in higher-dimensional spacetimes with the presence of the power-Maxwell field, surrounded by quintessence, are investigated for Einstein as well as Rastall gravity. The obtained solutions accommodate ...
Black Holes and Exotic Spinors
(Mdpi, 2016-06-01)
Exotic spin structures are non-trivial liftings, of the orthogonal bundle to the spin bundle, on orientable manifolds that admit spin structures according to the celebrated Geroch theorem. Exotic spin structures play a ...
Analytic Lifshitz black holes in higher dimensions
(Springer, 2010-04)
We generalize the four-dimensional R2-corrected z = 3/2 Lifshitz black hole to a two-parameter family of black hole solutions for any dynamical exponent z and for any dimension D. For a particular relation between the ...