Energy loss of a heavy particle near a three-dimensional charged hairy black hole

2014 ◽  
Vol 92 (11) ◽  
pp. 1481-1484 ◽  
Author(s):  
J. Naji ◽  
S. Heydari ◽  
A. Amjadi
Keyword(s):  
Field Theory ◽  
Black Hole ◽  
Energy Loss ◽  
Heavy Particle ◽  
Three Dimensional ◽  
Three Dimensions ◽  
De Sitter ◽  
Conformal Field ◽  
Scalar Charge ◽  
Hairy Black Hole

In this paper, we consider a charged black hole in three dimensions with a scalar charge and discuss energy loss of a heavy particle moving near the black hole horizon. This analysis is useful when anti-de Sitter space – conformal field theory correspondence is applied. We find that an electric charge of a black hole increases the drag force but a scalar charge decreases it.

scholarly journals Energy Loss of a Heavy Particle Near 3D Rotating Hairy Black Hole

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Jalil Naji ◽  
Hassan Saadat
Keyword(s):  
Black Hole ◽  
Energy Loss ◽  
Drag Force ◽  
Heavy Particle ◽  
Black Hole Horizon ◽  
Rotating Black Hole ◽  
Scalar Charge ◽  
Hairy Black Hole

We consider rotating black hole in 3 dimensions with a scalar charge and discuss energy loss of heavy particle moving near the black hole horizon. We find that drag force was increased by scalar charge while it was decreased due to the rotation of black hole. We also study quasnormal modes.

scholarly journals AdS3 GRAVITATIONAL INSTANTONS FROM CONFORMAL FIELD THEORY

1999 ◽  
Vol 14 (28) ◽  
pp. 1961-1981 ◽  
Author(s):  
SHUHEI MANO
Keyword(s):  
Field Theory ◽  
Conformal Field Theory ◽  
Bound States ◽  
Three Dimensional ◽  
Partition Functions ◽  
De Sitter ◽  
Btz Black Hole ◽  
Gravitational Instantons ◽  
Conformal Field ◽  
Horizon Geometry

A conformal field theory on the boundary of three-dimensional asymptotic anti-de Sitter spaces which appear as near horizon geometry of D-brane bound states is discussed. It is shown that partition functions of gravitational instantons appear as high and low temperature limits of the partition function of the conformal field theory. The result reproduces phase transition between the anti-de Sitter space and the BTZ black hole in the bulk gravity.

Jet-quenching parameter in 3D rotating hairy black hole background

2015 ◽  
Vol 12 (10) ◽  
pp. 1550108 ◽  
Author(s):  
Jalil Naji
Keyword(s):  
Black Hole ◽  
Rotation Parameter ◽  
Jet Quenching ◽  
Three Dimensions ◽  
Rotating Black Hole ◽  
Scalar Charge ◽  
Black Hole Background ◽  
Hairy Black Hole

In this paper, we consider rotating black hole in three dimensions with a scalar charge and discuss about the jet-quenching parameter. We find that the effect of scalar charge is decreasing and rotation parameter is increasing the value of the jet-quenching parameter.

scholarly journals THE CARDY–VERLINDE FORMULA AND ENTROPY OF TOPOLOGICAL REISSNER–NORDSTRÖM BLACK HOLES IN DE SITTER SPACES

2002 ◽  
Vol 17 (32) ◽  
pp. 2089-2094 ◽  
Author(s):  
M. R. SETARE
Keyword(s):  
Field Theory ◽  
Black Holes ◽  
Black Hole ◽  
Conformal Field Theory ◽  
Cosmological Horizon ◽  
De Sitter ◽  
Conformal Field ◽  
Entropy Formula ◽  
Verlinde Formula ◽  
Entropy Of Black Hole

In this paper we discuss the question of whether the entropy of cosmological horizon in topological Reissner–Nordström–de Sitter spaces can be described by the Cardy–Verlinde formula, which is supposed to be an entropy formula of conformal field theory in any dimension. Furthermore, we find that the entropy of black hole horizon can also be rewritten in terms of the Cardy–Verlinde formula for these black holes in de Sitter spaces, if we use the definition due to Abbott and Deser for conserved charges in asymptotically de Sitter spaces. Our result is in favour of the dS/CFT correspondence.

scholarly journals Holographic BCFTs and communicating black holes

2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
Hao Geng ◽  
Severin Lüst ◽  
Rashmish K. Mishra ◽  
David Wakeham
Keyword(s):  
Field Theory ◽  
Black Holes ◽  
Central Charge ◽  
Entanglement Entropy ◽  
Three Dimensional ◽  
Conformal Field Theories ◽  
De Sitter ◽  
Conformal Field ◽  
Theory Calculation ◽  
Scaling Dimension

Abstract We study the AdS/BCFT duality between two-dimensional conformal field theories with two boundaries and three-dimensional anti-de Sitter space with two Karch-Randall branes. We compute the entanglement entropy of a bipartition of the BCFT, on both the gravity side and the field theory side. At finite temperature this entanglement entropy characterizes the communication between two braneworld black holes, coupled to each other through a common bath. We find a Page curve consistent with unitarity. The gravitational result, computed using double-holographically realized quantum extremal surfaces, matches the conformal field theory calculation.At zero temperature, we obtain an interesting extension of the AdS3/BCFT2 correspondence. For a central charge c, we find a gap $$ \left(\frac{c}{16},\frac{c}{12}\right) $$ c 16 c 12 in the spectrum of the scaling dimension ∆bcc of the boundary condition changing operator (which interpolates mismatched boundary conditions on the two boundaries of the BCFT). Depending on the value of ∆bcc, the gravitational dual is either a defect global AdS3 geometry or a single sided black hole, and in both cases there are two Karch-Randall branes.

HOLOGRAMS OF FLAT SPACE

2013 ◽  
Vol 22 (12) ◽  
pp. 1342003 ◽  
Author(s):  
ARJUN BAGCHI ◽  
DANIEL GRUMILLER
Keyword(s):  
Field Theory ◽  
Three Dimensional ◽  
Flat Space ◽  
De Sitter ◽  
Conformal Field ◽  
Gravitational Theories ◽  
Concrete Realization ◽  
Flat Spacetimes ◽  
Space Boundary ◽  
Chern Simons

The holographic principle has a concrete realization in the Anti-de Sitter/Conformal Field Theory (AdS/CFT) correspondence. If this principle is a true fact about quantum gravity then it must also hold beyond AdS/CFT. In this paper, we address specifically holographic field theory duals of gravitational theories in asymptotically flat spacetimes. We present some evidence of our recent conjecture that three-dimensional (3d) conformal Chern–Simons gravity (CSG) with flat space boundary conditions is dual to an extremal CFT.

Quark–gluon plasma corresponding to a charged rotating hairy black hole

2016 ◽  
Vol 94 (6) ◽  
pp. 574-577 ◽  
Author(s):  
J. Naji ◽  
S. Heshmatian
Keyword(s):  
Black Hole ◽  
Electric Charge ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Jet Quenching ◽  
Three Dimensions ◽  
Rotating Black Hole ◽  
Scalar Charge ◽  
Hairy Black Hole

We consider a charged rotating black hole in three dimensions with a scalar charge and discuss the jet-quenching parameter. We find that the effect of scalar charge and electric charge is to increase the jet-quenching parameter while the rotation of the black hole may decrease the value of the jet-quenching parameter. We find that viscosity of quark–gluon plasma is enhanced because of the electric and scalar charges.

scholarly journals QUANTUM STATES OF THE SPACETIME, AND FORMATION OF BLACK HOLES IN AdS

2012 ◽  
Vol 21 (11) ◽  
pp. 1242009 ◽  
Author(s):  
MARCELO BOTTA CANTCHEFF
Keyword(s):  
Field Theory ◽  
Black Holes ◽  
Black Hole ◽  
Conformal Field Theory ◽  
Degrees Of Freedom ◽  
Quantum States ◽  
De Sitter ◽  
Unitary Evolution ◽  
Conformal Field ◽  
Ads Spacetime

We argue that a nonperturbative description of quantum gravity should involve two (noninteracting) copies of a dual field theory on the boundary, and describe the states of the spacetimes accordingly. So, for instance, a complete description of the asymptotically Anti-de-Sitter (AdS) spacetimes is given by two copies of the conformal field theory (CFT) associated to the global AdS spacetime. We also argue that, in this context, gravitational collapse and formation of a black hole may be described by unitary evolution of the dual nonperturbative degrees of freedom.

scholarly journals BLACK HOLES VERSUS FIREWALLS AND THERMO-FIELD DYNAMICS

2013 ◽  
Vol 22 (12) ◽  
pp. 1342011 ◽  
Author(s):  
BORUN D. CHOWDHURY
Keyword(s):  
Field Theory ◽  
Black Holes ◽  
Black Hole ◽  
Conformal Field Theory ◽  
Strong Coupling ◽  
Thermal State ◽  
Heat Bath ◽  
De Sitter ◽  
Conformal Field ◽  
Thermo Field Dynamics

In this paper, we examine the implications of the ongoing black holes versus firewalls debate for the thermo-field dynamics of black holes by analyzing a conformal field theory (CFT) in a thermal state in the context of anti-de Sitter/CFT. We argue that the thermo-field doubled copy of the thermal CFT should be thought of not as a fictitious system, but as the image of the CFT in the heat bath. In case of strong coupling between the CFT and the heat bath, this image allows for free infall through the horizon and the system is described by a black hole. Conversely, firewalls are the appropriate dual description in case of weak interaction of the CFT with its heat bath.

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