2018 CAP Congress / Congrès de l'ACP 2018

Session

M3-3 General Relativity I (DTP) I Relativité générale I (DPT)

M3-3

11 Jun 2018, 16:15

Dalhousie University

Conveners

M3-3 General Relativity I (DTP) I Relativité générale I (DPT)

• Manu Paranjape (Université de Montréal)

1949. Holography for fields with different spins in rotating black holes (I)

Prof. Masoud Ghezelbash (University of Saskatchewan)

11/06/2018, 16:15

Theoretical Physics / Physique théorique (DTP-DPT)

Invited Speaker / Conférencier(ère) invité(e)

We find the explicit form of two-point functions for the conformal energy momentum operators as well as conformal spin-one operators on the near horizon of a near extremal Kerr black hole. We introduce the appropriate boundary actions for the spin-two and the vector fields near the horizon of near extremal Kerr black hole. We find the two-point function for the conformal energy-momentum...

2201. Holographic Thermodynamics of Accelerating Black Holes (I)

Prof. Robert Mann (Physics & Astronomy Dept. University of Waterloo)

11/06/2018, 16:45

Theoretical Physics / Physique théorique (DTP-DPT)

Invited Speaker / Conférencier(ère) invité(e)

One of the more intriguing solutions of General Relativity is the C-metric, which can be interpreted as describing the spacetime of an accelerating black hole. Little is known about the thermodynamics of these objects. Here I present a consistent formulation of the thermodynamics of accelerated black holes, resolving inconsistencies and discrepancies that have appeared in previous...

1979. Jordan frame no-hair for scalar-tensor black holes: a new proof

Prof. Valerio Faraoni (Bishop's University)

11/06/2018, 17:15

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Non-Student) / Orale (non-étudiant(e))

We present a no-hair theorem for spherical black holes in scalar-tensor gravity. Contrary to the existing theorems, which are all proved in the Einstein conformal frame, this proof is performed entirely in the Jordan frame. The theorem is limited to spherical symmetry (instead of axisymmetry), but it holds for non-constant Brans-Dicke coupling.

[Based on V. Faraoni, Phys. Rev. D 95, 124013 (2017)]

2024. A symmetry of Brans-Dicke gravity as a novel solution-generating technique

Dr Dilek Kazici Ciftci (Department of Physics, Namık Kemal University, Tekirdag, Turkey & Department of Physics and Astronomy, Bishop’s University, Canada)

11/06/2018, 17:30

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Non-Student) / Orale (non-étudiant(e))

Brans-Dicke gravity, enriched by the possibility of an arbitrary potential V (ϕ) for the Brans-Dicke scalar field, and in the presence of conformally invariant matter admits a 1-parameter symmetry group. We explore the use of these symmetries as a solution-generating technique using known solutions as seeds. We apply this technique to generate, as examples, new spatially homogeneous and...

2370. Black Hole Chemistry in de Sitter: A New Approach

Saoussen MBAREK (University of Waterloo)

11/06/2018, 17:45

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Graduate Student) / Orale (Étudiant(e) du 2e ou 3e cycle)

In the context of black hole chemistry, we study the thermodynamics of asymptotically de Sitter black holes with conformal scalar hair in Einstein gravity. The hair parameter allows us to reach thermodynamic equilibrium between the event horizon and the cosmological horizon. We find that the system of the black hole and the de Sitter space surrounding it undergo a phase transition that...

2234. Black Hole Biochemistry (G)*

Mrs Saoussen Mbarek (University of waterloo)

Theoretical Physics / Physique théorique (DTP-DPT)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

In the context of black hole chemistry, We study the thermodynamics of asymptotically de Sitter Black holes with conformal scalar hair in Einstein gravity. The hair parameter allows us to reach thermodynamic equilibrium between the event horizon and the cosmological horizon. We find that these hairy black holes undergo a new phase transition that resembles the phase transtions of denatured proteins.