• Corpus ID: 15377513

Black Hole Entropy and Gravity Cutoff

  title={Black Hole Entropy and Gravity Cutoff},
  author={Gia Dvali and Sergey N. Solodukhin},
  journal={arXiv: High Energy Physics - Theory},
We study the black hole entropy as entanglement entropy and propose a resolution to the species puzzle. This resolution comes out naturally due to the fact that in the presence of $N$ species the universal gravitational cutoff is $\Lambda=M_{\rm Planck}/\sqrt{N}$, as opposed to $M_{\rm Planck}$. We demonstrate consistency of our solution by showing the equality of the two entropies in explicit examples in which the relation between $M_{\rm Planck}$ and $\Lambda$ is known from the fundamental… 
Bounds on black hole entropy in unitary theories of gravity
We consider unitary and weakly coupled theories of gravity that extend Einstein gravity and reduce to it asymptotically at large distances. Our discussion is restricted to such theories that,
Species and Strings
Based on well-known properties of semi-classical black holes, we show that weakly-coupled string theory can be viewed as a theory of N = 1/g_s^2 particle species. This statement is a string theoretic
Vacuum entanglement and black hole entropy of gauge fields
Black holes in general relativity carry an entropy whose value is given by the Bekenstein-Hawking formula, but whose statistical origin remains obscure. Such horizons also possess an entanglement
Black hole quantum mechanics in the presence of species
Recently within the context of a microscopic quantum theory, the Black Hole's Quantum N‐Portrait, it was shown that continuous global symmetries are compatible with quantum black hole physics. In the
Entanglement Entropy of Black Holes
The focus in the review is on the systematic use of the conical singularity method and the puzzling behavior of the entanglement entropy due to fields, which non-minimally couple to gravity, which is illustrated on two- and four-dimensional examples.
Large Field Inflation and Gravitational Entropy
Author(s): Kaloper, N; Kleban, M; Lawrence, A; Sloth, MS | Abstract: © 2016 American Physical Society. Large field inflation can be sensitive to perturbative and nonperturbative quantum corrections
Quantum Gravity in Species Regime
A large number of particle species allows to formulate quantum gravity in a special double-scaling limit, the species limit. In this regime, quantum gravitational amplitudes simplify substantially.
Micro black holes and the democratic transition
Unitarity implies that the evaporation of microscopic quasiclassical black holes cannot be universal in different particle species. This creates a puzzle, since it conflicts with the thermal nature
Probing quantum geometry at LHC
We present an evidence, that the volumes of compactified spaces as well as the areas of black hole horizons must be quantized in Planck units. This quantization has phenomenological consequences,
A ug 2 01 0 Entanglement entropy of round spheres
We propose that the logarithmic term in the entanglement entropy computed in a conformal field theory for a (d−2)-dimensional round sphere in Minkowski spacetime is identical to the logarithmic term


Black hole bound on the number of species and quantum gravity at CERN LHC
In theories with a large number N of particle species, black hole physics imposes an upper bound on the mass of the species equal to M-Planck/root N. This bound suggests a novel solution to the
Do We Understand Black Hole Entropy
I review various proposals for the nature of black hole entropy and for the mechanism behind the operation of the generalized second law. I stress the merits of entanglement entropy {\tenit qua\/}
Black hole entropy as entanglement entropy: A Holographic derivation
It is argued that a recent proposal for computing entanglement entropy using AdS/CFT holography implies that black hole entropy can be exactly equated with entanglements entropy.
Black holes and large N species solution to the hierarchy problem
We provide the perturbative and non‐perturbative arguments showing that theories with large number of species of the quantum fields, imply an inevitable hierarchy between the masses of the species
Entanglement interpretation of black hole entropy in string theory
We show that the entropy resulting from the counting of microstates of non extremal black holes using field theory duals of string theories can be interpreted as arising from entanglement. The
Conical singularity and quantum corrections to the entropy of a black hole.
  • Solodukhin
  • Physics
    Physical review. D, Particles and fields
  • 1995
It is argued that infinities of the entropy in four dimensions are renormalized by the renormalization of the gravitational coupling.
Entanglement entropy of black holes and anti-de Sitter space/conformal-field-theory correspondence.
A new term in the entropy of dual strongly coupled conformal-field theory, which universally grows as L(2)lnL and is proportional to the value of the obstruction tensor at the black hole horizon, is predicted.
Large-N bounds on, and compositeness limit of, gauge and gravitational interactions
In a toy model of gauge and gravitational interactions in D ? 4 dimensions, endowed with an invariant UV cut-off ?, and containing a large number N of non-self-interacting matter species, the
AdS/CFT and gravity
The radiation-dominated k=0 FRW cosmology emerges as the induced metric on a codimension one hypersurface of constant extrinsic curvature in the five-dimensional AdS-Schwarzschild solution. That we