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Black holes and hot shells in the Euclidean path integral approach to quantum gravity
José P. S. Lemos, O. B. Zaslavskii
We study a spherical black hole surrounded by a hot self-gravitating thin shell in the canonical ensemble, i.e., a black hole and a hot shell inside a heat reservoir acting as a bo…
Thermodynamics of -dimensional Schwarzschild black holes in the canonical ensemble
Rui André, José P. S. Lemos
We study the thermodynamics of a -dimensional Schwarzschild black hole in the canonical ensemble. This generalizes York's formalism to any number of dimensions. The canonica…
Thermodynamics and entropy of self-gravitating matter shells and black holes in dimensions
Rui André, José P. S. Lemos, Gonçalo M. Quinta
The thermodynamic properties of self-gravitating spherical thin matter shells an black holes in dimensions are studied, extending previous analysis for . The shell joins…
Black hole thermodynamics with the cosmological constant as independent variable: Bridge between the enthalpy and the Euclidean path integral approaches
José P. S. Lemos, Oleg B. Zaslavskii
Viewing the cosmological constant as an independent variable, we consider the thermodynamics of the Schwarzschild black hole in an anti-de Sitter (AdS) background. For this s…
Unified approach to the entropy of an extremal rotating BTZ black hole: Thin shells and horizon limits
José P. S. Lemos, Masato Minamitsuji, Oleg B. Zaslavskii
Using a thin shell, the first law of thermodynamics, and a unified approach, we study the thermodymanics and find the entropy of a (2+1)-dimensional extremal rotating Bañados-Teite…
Thermodynamics of extremal rotating thin shells in an extremal BTZ spacetime and the extremal black hole entropy
José P. S. Lemos, Masato Minamitsuji, Oleg B. Zaslavskii
In a (2+1)-dimensional spacetime with a negative cosmological constant, the thermodynamics and the entropy of an extremal rotating thin shell, i.e., an extremal rotating ring, are…
Entropy of extremal black holes: horizon limits through charged thin shells, a unified approach
José P. S. Lemos, Gonçalo M. Quinta, Oleg B. Zaslavskii
Using a unified approach we study the entropy of extremal black holes through the entropy of an electrically charged thin shell. We encounter three cases in which a shell can be ta…
Thermodynamics of rotating thin shells in the BTZ spacetime
José P. S. Lemos, Francisco J. Lopes, Masato Minamitsuji +1
We investigate the thermodynamic equilibrium states of a rotating thin shell, i.e., a ring, in a (2+1)-dimensional spacetime with a negative cosmological constant. The inner and ou…
Entropy of an extremal electrically charged thin shell and the extremal black hole
José P. S. Lemos, Gonçalo M. Quinta, Oleg B. Zaslavskii
There is a debate as to what is the value of the the entropy of extremal black holes. There are approaches that yield zero entropy , while there are others that yield the…
Entropy of a self-gravitating electrically charged thin shell and the black hole limit
José P. S. Lemos, Gonçalo M. Quinta, Oleg B. Zaslavskii
A static self-gravitating electrically charged spherical thin shell embedded in a (3+1)-dimensional spacetime is used to study the thermodynamic and entropic properties of the corr…
Holographic charge transport in Lifshitz black hole backgrounds
José P. S. Lemos, Da-Wei Pang
We study charge transport properties in a domain-wall geometry, whose near horizon IR geometry is a Lifshitz black hole and whose UV geometry is AdS. The action for the gauge field…
Collapsing and static thin massive charged dust shells in a Reissner-Nordström black hole background in higher dimensions
Sijie Gao, José P. S. Lemos
The problem of a spherically symmetric charged thin shell of dust collapsing gravitationally into a charged Reissner-Nordström black hole in spacetime dimensions is studied wit…
Conformal entropy from horizon states: Solodukhin's method for spherical, toroidal, and hyperbolic black holes in D-dimensional anti-de Sitter spacetimes
Goncalo A. S. Dias, Jose' P. S. Lemos
A calculation of the entropy of static, electrically charged, black holes with spherical, toroidal, and hyperbolic compact and oriented horizons, in D spacetime dimensions, is perf…
Global embedding of D-dimensional black holes with a cosmological constant in Minkowskian spacetimes: Matching between Hawking temperature and Unruh temperature
Nuno Loureiro Santos, Oscar J. C. Dias, José P. S. Lemos
We study the matching between the Hawking temperature of a large class of static D-dimensional black holes and the Unruh temperature of the corresponding higher dimensional Rindler…
New instability for rotating black branes and strings
Vitor Cardoso, José P. S. Lemos
The evolution of small perturbations around rotating black branes and strings, which are low energy solutions of string theory, are investigated. For simplicity, we concentrate on…
Pair creation of higher dimensional black holes on a de Sitter background
Oscar J. C. Dias, Jose' P. S. Lemos
We study in detail the quantum process in which a pair of black holes is created in a higher D-dimensional de Sitter (dS) background. The energy to materialize and accelerate the p…
The covariant entropy bound in gravitational collapse
Sijie Gao, Jose' P. S. Lemos
We study the covariant entropy bound in the context of gravitational collapse. First, we discuss critically the heuristic arguments advanced by Bousso. Then we solve the problem th…
The black hole bomb and superradiant instabilities
Vitor Cardoso, Oscar J. C. Dias, Jose' P. S. Lemos +1
A wave impinging on a Kerr black hole can be amplified as it scatters off the hole if certain conditions are satisfied giving rise to superradiant scattering. By placing a mirror a…
Supergravity p-branes revisited: extra parameters, uniqueness, and topological censorship
Dmitri V. Gal'tsov, Jose P. S. Lemos, Gerard Clement
We perform a complete integration of the Einstein-dilaton-antisymmetric form action describing black p-branes in arbitrary dimensions assuming the transverse space to be homogeneou…
Nariai, Bertotti-Robinson and anti-Nariai solutions in higher dimensions
Vitor Cardoso, Oscar J. C. Dias, Jose' P. S. Lemos
We find all the higher dimensional solutions of the Einstein-Maxwell theory that are the topological product of two manifolds of constant curvature. These solutions include the hig…
Scalar-gravitational perturbations and quasinormal modes in the five dimensional Schwarzschild black hole
Vitor Cardoso, Jose' P. S. Lemos, Shijun Yoshida
We calculate the quasinormal modes (QNMs) for gravitational perturbations of the Schwarzschild black hole in the five dimensional (5D) spacetime with a continued fraction method. F…
Pair creation of de Sitter black holes on a cosmic string background
Oscar J. C. Dias, Jose' P. S. Lemos
We analyze the quantum process in which a cosmic string breaks in a de Sitter (dS) background, and a pair of neutral or charged black holes is produced at the ends of the string. T…
Late-Time Tails of Wave Propagation in Higher Dimensional Spacetimes
Vitor Cardoso, Shijun Yoshida, Oscar J. C. Dias +1
We study the late-time tails appearing in the propagation of massless fields (scalar, electromagnetic and gravitational) in the vicinities of a D-dimensional Schwarzschild black ho…
The extremal limits of the C-metric: Nariai, Bertotti-Robinson and anti-Nariai C-metrics
Oscar J. C. Dias, Jose' P. S. Lemos
In two previous papers we have analyzed the C-metric in a background with a cosmological constant, namely the de Sitter (dS) C-metric, and the anti-de Sitter (AdS) C-metric, follow…