Comments on 'Entropy of 2-D black holes from counting microstates'

In a recent letter, Cadoni and Mignemi proposed a formulation for the statistical computation of the 2D black holes entropy. We present a criticism about their formulation.

black hole
entropy
dimension: 2
entropy: statistical
algebra: Virasoro

References(15)

Figures(0)

Entropy of 2-D black holes from counting microstates

Mariano Cadoni
(
- Cagliari U. and
- INFN, Cagliari
)
,
Salvatore Mignemi
(
- Cagliari U. and
- INFN, Cagliari
)

- Phys.Rev.D 59 (1999) 081501
•
e-Print:
- hep-th/9810251
•
DOI:
- 10.1103/PhysRevD.59.081501

Nonsingular four-dimensional black holes and the Jackiw-Teitelboim theory

Mariano Cadoni
(
- Cagliari U. and
- INFN, Cagliari
)
,
Salvatore Mignemi
(
- Cagliari U. and
- INFN, Cagliari
)

- Phys.Rev.D 51 (1995) 4319-4329
•
e-Print:
- hep-th/9410041
•
DOI:
- 10.1103/PhysRevD.51.4319

Central Charges in the Canonical Realization of Asymptotic Symmetries: An Example from Three-Dimensional Gravity

J.David Brown
(
- Texas U.
)
,
M. Henneaux
(
- Texas U.
)

- Commun.Math.Phys. 104 (1986) 207-226,
- Commun. Math. Phys. 104 ( 1986) 207-226
•
DOI:
- 10.1007/BF01211590

Black hole entropy from near horizon microstates

Andrew Strominger
(
- Harvard U.
)

- JHEP 02 (1998) 009
•
e-Print:
- hep-th/9712251
•
DOI:
- 10.1088/1126-6708/1998/02/009

Entropy of three-dimensional black holes in string theory

Danny Birmingham
(
- University Coll., Dublin
)
,
Ivo Sachs
(
- Durham U.
)
,
Siddhartha Sen
(
- Trinity Coll., Dublin
)

- Phys.Lett.B 424 (1998) 275-280
•
e-Print:
- hep-th/9801019
•
DOI:
- 10.1016/S0370-2693(98)00236-6

Global charges in Chern-Simons field theory and the (2+1) black hole

Maximo Banados
(
- Imperial Coll., London and
- CECS, Valdivia
)

- Phys.Rev.D 52 (1996) 5816-5825
•
e-Print:
- hep-th/9405171
•
DOI:
- 10.1103/PhysRevD.52.5816

Boundary dynamics and the statistical mechanics of the (2+1)-dimensional black hole

Maximo Banados
(
- Zaragoza U. and
- CECS, Valdivia and
- Chile U., Santiago and
- Imperial Coll., London
)
,
Thorsten Brotz
(
- Imperial Coll., London
)
,
Miguel E. Ortiz
(
- Imperial Coll., London
)

- Nucl.Phys.B 545 (1999) 340-370
•
e-Print:
- hep-th/9802076
•
DOI:
- 10.1016/S0550-3213(99)00069-3

Symplectic reduction and symmetry algebra in boundary Chern-Simons theory

Phillial Oh
(
- MIT, LNS
)
,
Mu-In Park
(
- MIT, LNS
)

- Mod.Phys.Lett.A 14 (1999) 231-238
•
e-Print:
- hep-th/9805178
•
DOI:
- 10.1142/S0217732399000274

Symmetry algebras in Chern-Simons theories with boundary: Canonical approach

Mu-In Park
(
- Seoul Natl. U. and
- Sogang U.
)

- Nucl.Phys.B 544 (1999) 377-402
•
e-Print:
- hep-th/9811033
•
DOI:
- 10.1016/S0550-3213(99)00031-0

Gauged nonlinear sigma model and boundary diffeomorphism algebra

Phillial Oh
(
- Sungkyunkwan U.
)

- Phys.Lett.B 464 (1999) 19-24
•
e-Print:
- hep-th/9906197
•
DOI:
- 10.1016/S0370-2693(99)01041-2

What we don't know about BTZ black hole entropy

Steven Carlip
(
- UC, Davis
)

- Class.Quant.Grav. 15 (1998) 3609-3625
•
e-Print:
- hep-th/9806026
•
DOI:
- 10.1088/0264-9381/15/11/020

Role of Surface Integrals in the Hamiltonian Formulation of General Relativity

- Annals Phys. 88 (1974) 286
•
DOI:
- 10.1016/0003-4916(74)90404-7

Black hole entropy from conformal field theory in any dimension

Steven Carlip
(
- UC, Davis
)

- Phys.Rev.Lett. 82 (1999) 2828-2831
•
e-Print:
- hep-th/9812013
•
DOI:
- 10.1103/PhysRevLett.82.2828

Entropy from conformal field theory at Killing horizons

Steven Carlip
(
- UC, Davis
)

- Class.Quant.Grav. 16 (1999) 3327-3348
•
e-Print:
- gr-qc/9906126
•
DOI:
- 10.1088/0264-9381/16/10/322

Comments on 'Black hole entropy from conformal field theory in any dimension'

Mu-In Park
(
- Yonsei U.
)
,
Jeongwon Ho
(
- Alberta U.
)

- Phys.Rev.Lett. 83 (1999) 5595
•
e-Print:
- hep-th/9910158
•
DOI:
- 10.1103/PhysRevLett.83.5595