Low-energy scattering of extreme black holes in string theory

1997 ◽  
pp. 273-277
Author(s):  
R Khuri ◽  
R Myers
Keyword(s):  
Black Holes ◽  
String Theory ◽  
Low Energy ◽  
Energy Scattering ◽  
Extreme Black Holes

scholarly journals GRAVITY ON NONCOMMUTATIVE D-BRANES

2003 ◽  
Vol 18 (07) ◽  
pp. 1051-1066 ◽  
Author(s):  
F. ARDALAN ◽  
H. ARFAEI ◽  
M. R. GAROUSI ◽  
A. GHODSI
Keyword(s):  
String Theory ◽  
Effective Action ◽  
Low Energy ◽  
Bosonic String ◽  
First Order ◽  
Energy Scattering ◽  
Bosonic String Theory ◽  
Brane Action

The effective action for the low energy scattering of two gravitons with a D-brane in the presence of a constant antisymmetric B field in bosonic string theory is calculated and the modification to the standard D-brane action to first order in α′ is obtained.

scholarly journals Low-energy scattering of extremal black holes by neutral matter

2002 ◽  
Vol 628 (1-2) ◽  
pp. 361-374 ◽  
Author(s):  
A. Fabbri ◽  
D.J. Navarro ◽  
J. Navarro-Salas
Keyword(s):  
Black Holes ◽  
Low Energy ◽  
Energy Scattering ◽  
Extremal Black Holes

scholarly journals Dynamical black holes in low-energy string theory

2017 ◽  
Vol 2017 (5) ◽  
Author(s):  
Pedro Aniceto ◽  
Jorge V. Rocha
Keyword(s):  
Black Holes ◽  
String Theory ◽  
Low Energy

scholarly journals Shadows of charged rotating black holes: Kerr–Newman versus Kerr–Sen

2020 ◽  
Vol 29 (11) ◽  
pp. 2041005
Author(s):  
Sérgio Vinicius Monteiro C. B. Xavier ◽  
Pedro V. P. Cunha ◽  
Luís C. B. Crispino ◽  
Carlos A. R. Herdeiro
Keyword(s):  
Black Holes ◽  
String Theory ◽  
Gravitational Lensing ◽  
New Physics ◽  
Effective Field ◽  
Low Energy ◽  
Heterotic String ◽  
Physical Parameters ◽  
Heterotic String Theory ◽  
Gravitational Fields

Celebrating the centennial of its first experimental test, the theory of General Relativity (GR) has successfully and consistently passed all subsequent tests with flying colors. It is expected, however, that at certain scales new physics, in particular, in the form of quantum corrections, will emerge, changing some of the predictions of GR, which is a classical theory. In this respect, black holes (BHs) are natural configurations to explore the quantum effects on strong gravitational fields. BH solutions in the low-energy effective field theory description of the heterotic string theory, which is one of the leading candidates to describe quantum gravity, have been the focus of many studies in the last three decades. The recent interest in strong gravitational lensing by BHs, in the wake of the Event Horizon Telescope (EHT) observations, suggests comparing the BH lensing in both GR and heterotic string theory, in order to assess the phenomenological differences between these models. In this work, we investigate the differences in the shadows of two charged BH solutions with rotation: one arising in the context of GR, namely the Kerr–Newman (KN) solution, and the other within the context of low-energy heterotic string theory, the Kerr–Sen (KS) solution. We show and interpret, in particular, that the stringy BH always has a larger shadow, for the same physical parameters and observation conditions.

scholarly journals CHARGING INTERACTING ROTATING BLACK HOLES IN HETEROTIC STRING THEORY

2004 ◽  
Vol 19 (30) ◽  
pp. 2299-2315 ◽  
Author(s):  
ALFREDO HERRERA-AGUILAR
Keyword(s):  
Field Theory ◽  
Black Holes ◽  
String Theory ◽  
Effective Field Theory ◽  
Effective Field ◽  
Low Energy ◽  
Heterotic String ◽  
Target Space ◽  
Heterotic String Theory ◽  
Rotating Black Holes

We present a formulation of the stationary bosonic string sector of the whole toroidally compactified effective field theory of the heterotic string as a double Ernst system which, in the framework of general relativity describes, in particular, a pair of interacting spinning black holes; however, in the framework of low-energy string theory the double Ernst system can in particular be interpreted as the rotating field configuration of two interacting sources of black hole type coupled to dilaton and Kalb–Ramond fields. We clarify the rotating character of the Btφ-component of the antisymmetric tensor field of Kalb–Ramond and discuss on its possible torsion nature. We also recall the fact that the double Ernst system possesses a discrete symmetry which is used to relate physically different string vacua. Therefore we apply the normalized Harrison transformation (a charging symmetry which acts on the target space of the low-energy heterotic string theory preserving the asymptotics of the transformed fields and endowing them with multiple electromagnetic charges) on a generic solution of the double Ernst system and compute the generated field configurations for the 4-D effective field theory of the heterotic string. This transformation generates the U (1)n vector field content of the whole low-energy heterotic string spectrum and gives rise to a pair of interacting rotating black holes endowed with dilaton, Kalb–Ramond and multiple electromagnetic fields where the charge vectors are orthogonal to each other.

scholarly journals Transient scalar hair for nearly extreme black holes

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Lior M. Burko ◽  
Gaurav Khanna ◽  
Subir Sabharwal
Keyword(s):  
Black Holes ◽  
Scalar Hair ◽  
Extreme Black Holes

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
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