Results 101 to 110 of about 119,004,954 (182)

Charged AdS black holes in presence of string cloud and Cardy-Verlinde formula

Nuclear Physics B
In this study, charged AdS black holes with a string cloud are taken into consideration. We identify three distinct black hole solutions within a specific temperature range, which subsequently merge into a single black hole beyond this range in the case ...
Rishi Pokhrel, Tanay K. Dey
doaj   +1 more source

Primordial black holes in non-linear perturbation theory [PDF]

, 2009
PhDThe thesis begins with a study of the origin of non-linear cosmological fluctuations. In particular, a class of models of multiple field inflation are considered, with specific reference to those cases in which the non-Gaussian correlation functions
Hidalgo-Cuellar, Juan Carlos
core   +1 more source

Trapped string states in AdS5 black hole geometry: a path toward Hawking radiation

Journal of High Energy Physics
We investigate the quantum dynamics of a closed bosonic string in the curved spacetime of an AdS5-Schwarzschild black hole. Starting from the Polyakov action, we perform a canonical quantization of the string and formulate its quantum mechanical equation
Harpreet Singh, Malay K. Nandy
doaj   +1 more source

Gravitational waves in the Myers-Perry geometry

Journal of High Energy Physics
We analyze equations describing gravitational waves in the Myers-Perry and Gibbons-Lu-Page-Pope geometries with arbitrary rotation parameters. Assuming that at least one rotation parameter vanishes, we demonstrate full separability of equations for ...
Oleg Lunin
doaj   +1 more source

State-Space Geometry, Statistical Fluctuations, and Black Holes in String Theory

, 2020
We study the state-space geometry of various extremal and nonextremal black holes in string theory. From the notion of the intrinsic geometry, we offer a state-space perspective to the black hole vacuum fluctuations.
Bhupendra Nath Tiwari, Stefano Bellucci
core  

Towards Hamiltonian formalism for string field theory and nonlocality

Journal of High Energy Physics
String field theories exhibit exponential suppression of interactions among the component fields at high energies due to infinite-derivative factors such as e ℓ 2 □ / 2 $$ {e}^{\ell^2\square /2} $$ in the vertices.
Chih-Hao Chang, Pei-Ming Ho, I-Kwan Lee, Wei-Hsiang Shao   +3 more
doaj   +1 more source

Kalb-Ramond field, black holes and black strings in (2 + 1)D

Journal of High Energy Physics
New rotating dilaton black hole and black string solutions in three spacetime dimensions are obtained. The solutions are asymptotically flat and, they are exact in classical string theory. The black hole solutions have only a single horizon.
Meseret Asrat
doaj   +1 more source

Large D gravity and low D string via α ′ corrections

Journal of High Energy Physics
In this paper, we generalize the correspondence between large D gravity and low D string theory to the most general case, including its T-dual solutions.
Shuxuan Ying
doaj   +1 more source

Thermal duality: nemesis of black holes?

, 2015
This talk presents evidence supporting a conjecture that there are no black holes in M theory. We will show that a mechanism to prevent black hole formation is needed in 4 dimensions to make string theory a viable high energy model of quantum gravity ...
Hewitt, M.
core  

Black Holes In String Theory

, 2007
. The black hole solutions to Einstein's vacuum field equations are also solutions to the equations of motion of the low energy limit of superstring theory.
J. C. Breckenridge, Breckenridge Department Of   +1 more
core