scholarly journals Black holes in string theory with duality twists

2020 ◽  
Vol 2020 (7) ◽  
Author(s):  
Chris Hull ◽  
Eric Marcus ◽  
Koen Stemerdink ◽  
Stefan Vandoren
Keyword(s):  
Black Holes ◽  
String Theory

scholarly journals Shadows of 5D black holes from string theory

2021 ◽  
Vol 812 ◽  
pp. 136025
Author(s):  
A. Belhaj ◽  
H. Belmahi ◽  
M. Benali ◽  
W. El Hadri ◽  
H. El Moumni ◽  
...  
Keyword(s):  
Black Holes ◽  
String Theory

scholarly journals GRAVITY-WAVE DETECTORS AS PROBES OF EXTRA DIMENSIONS

2005 ◽  
Vol 14 (12) ◽  
pp. 2347-2353 ◽  
Author(s):  
CHRIS CLARKSON ◽  
ROY MAARTENS
Keyword(s):  
Black Holes ◽  
String Theory ◽  
Gravity Wave ◽  
Gravity Waves ◽  
Extra Dimensions ◽  
State Of The Art ◽  
Three Dimensional ◽  
Observable Universe ◽  
Dimensional Spacetime ◽  
Higher Dimensional

If string theory is correct, then our observable universe may be a three-dimensional "brane" embedded in a higher-dimensional spacetime. This theoretical scenario should be tested via the state-of-the-art in gravitational experiments — the current and upcoming gravity-wave detectors. Indeed, the existence of extra dimensions leads to oscillations that leave a spectroscopic signature in the gravity-wave signal from black holes. The detectors that have been designed to confirm Einstein's prediction of gravity waves, can in principle also provide tests and constraints on string theory.

Black Holes in String Theory

2013 ◽  
pp. 59-178 ◽  
Author(s):  
Iosif Bena ◽  
Sheer El-Showk ◽  
Bert Vercnocke
Keyword(s):  
Black Holes ◽  
String Theory

scholarly journals Gravity cells as a necessary link in string theory. The formula for the gravitational constant, the formula for the mass of the electron, the formula for the minimum distance of the gravitational interaction. The coincidence of the results obtained by the formulas and the experimental data.

2021 ◽  
Author(s):  
Andrey Chernov
Keyword(s):  
Experimental Data ◽  
Black Holes ◽  
String Theory ◽  
Minimum Distance ◽  
Gravitational Constant ◽  
Casimir Effect ◽  
Gravitational Interaction ◽  
Fundamental Constants ◽  
Vibrational Velocity ◽  
Schwarzschild Radius

Abstract In this study, a new concept is introduced into physics - gravitational cells. The gravitational cell hypothesis was organically integrated into string theory. As a result, using the Schwarzschild radius formula and the Coulomb formula, a gravitational formula in the region of black holes was obtained on the basis of two fundamental constants, and its exact value was determined. The value of the "usual" gravitational constant was also confirmed and the mass of the gravitational cell was obtained. The introduction of the hypothesis of gravitational cells into string theory made it possible to apply Planck's formula to gravitational interaction. As a result, a formula for the energy of a gravitational quantum and a formula for the vibrational velocity of a gravitational string were obtained. On this basis, the formula for the mass of the electron was obtained and its value was calculated, which coincided with the experimental mass of the electron. The exact minimum distance of the gravitational interaction was determined by the formula for the vibrational velocity of the gravitational string. This calculated minimum distance completely coincided with the known experimental data obtained when determining the Casimir effect (force).

scholarly journals A PROPOSAL TO RESOLVE THE BLACK HOLE INFORMATION PARADOX

2002 ◽  
Vol 11 (10) ◽  
pp. 1537-1540 ◽  
Author(s):  
SAMIR D. MATHUR
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
String Theory ◽  
Quantum Gravity ◽  
Bound State ◽  
Nonlocal Effects ◽  
Information Paradox ◽  
Microscopic Scale ◽  
Gravity Effects ◽  
Black Hole Information

The entropy and information puzzles arising from black holes cannot be resolved if quantum gravity effects remain confined to a microscopic scale. We use concrete computations in nonperturbative string theory to argue for three kinds of nonlocal effects that operate over macroscopic distances. These effects arise when we make a bound state of a large number of branes, and occur at the correct scale to resolve the paradoxes associated with black holes.

A COMMENT ON THE BLACK HOLE INFORMATION PARADOX

2001 ◽  
Vol 16 (supp01c) ◽  
pp. 1001-1004
Author(s):  
SAMIR D. MATHUR
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
String Theory ◽  
Information Paradox ◽  
Loss Of Information ◽  
Black Hole Information ◽  
Classical Gravity ◽  
New Criterion

Results from string theory strongly suggest that formation and evaporation of black holes is a unitary process. Thus we must find a flaw in the semiclassical reasoning that implies a loss of information. We propose a new criterion that limits the domain of classical gravity: the hypersurfaces of a foliation cannot be stretched too much.

scholarly journals Four-dimensional black holes in string theory

1993 ◽  
Vol 48 (12) ◽  
pp. 5784-5797 ◽  
Author(s):  
Steven B. Giddings ◽  
Joseph Polchinski ◽  
Andrew Strominger
Keyword(s):  
Black Holes ◽  
String Theory

scholarly journals Emergence and correspondence for string theory black holes

2020 ◽  
Vol 69 ◽  
pp. 112-127
Author(s):  
Jeroen van Dongen ◽  
Sebastian De Haro ◽  
Manus Visser ◽  
Jeremy Butterfield
Keyword(s):  
Black Holes ◽  
String Theory
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