Results 51 to 60 of about 94,999 (192)
The gravitational index of a small black ring
Certain supersymmetric elementary string states with angular momentum can be viewed as small black rings in a five-dimensional string theory. These black rings have zero area event horizon.
Subhodip Bandyopadhyay +3 more
doaj +1 more source
Ultra-spinning Chow’s black holes in six-dimensional gauged supergravity and their properties
By taking the ultra-spinning limit as a simple solution-generating trick, a novel class of ultra-spinning charged black hole solutions has been constructed from Chow’s rotating charged black hole with two equal-charge parameters in six-dimensional N ...
Di Wu, Shuang-Qing Wu
doaj +1 more source
Primordial black holes and their gravitational-wave signatures. [PDF]
Bagui E +20 more
europepmc +2 more sources
Critical phenomena in the AdS/CFT duality
We review black holes with second-order phase transition in string theory (R-charged black holes and holographic superconductors) and review their static and dynamic critical phenomena.
Albash +32 more
core +1 more source
Electric Magnetic Duality in String Theory [PDF]
The electric-magnetic duality transformation in four dimensional heterotic string theory discussed by Shapere, Trivedi and Wilczek is shown to be an exact symmetry of the equations of motion of low energy effective field theory even after including the ...
Ashoke Sen +55 more
core +3 more sources
A black hole is a region of space time exhibiting such strong gravitational effects that nothing not even particles and electromagnetic radiation such as light can escape from inside it. From the theoretical point of view, black holes provide an intriguing arena in which to explore the challenges posed by the reconciliation of general relativity and ...
Ndriçim Sadikaj, Anila Duka
openaire +1 more source
Phases and stability of non-uniform black strings
We construct solutions of non-uniform black strings in dimensions from D ≈ 9 all the way up to D = ∞, and investigate their thermodynamics and dynamical stability.
Roberto Emparan +4 more
doaj +1 more source
In this paper, we investigate, in the framework of the topological approach to black hole thermodynamics, using the generalized off-shell Helmholtz free energy, the topological numbers of the static multi-charge AdS black holes in four- and five ...
Di Wu +4 more
doaj +1 more source
Black hole thermodynamics with dynamical lambda
We study evolution and thermodynamics of a slow-roll transition between early and late time de Sitter phases, both in the homogeneous case and in the presence of a black hole, in a scalar field model with a generic potential having both a maximum and a ...
Ruth Gregory +2 more
doaj +1 more source
Massive vector fields in Kerr-Newman and Kerr-Sen black hole spacetimes
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 Kerr-Sen black hole).
Ramiro Cayuso +7 more
doaj +1 more source

