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1.
Hawking Radiation from Topological Kerr Anti-de-Sitter Black Hole with One Rotational Parameter via Covariant Anomalies 总被引:3,自引:0,他引:3
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Using anomalous viewpoint, we study the Hawking radiation from a kind of topological Kerr Anti-de-Sitter (Kerr-AdS) black hole with one rotational parameter. We employ the covariant gauge and gravitational anomalies. The result supports the Robinson-Wilczek opinion and shows that the Hawking temperature can be correctly determined by cancelling covariant gauge and gravitational anomalies at the horizon. 相似文献
2.
Adopting the anomaly cancellation method, initiated by Robinson and
Wilczek recently, this paper discusses Hawking radiation from the
dilaton--(anti) de Sitter black hole. To save the underlying gauge
and general covariance, it introduces covariant fluxes of gauge and
energy--momentum tensor to cancel the gauge and gravitational
anomalies. The result shows that the introduced compensating fluxes
are equivalent to those of a 2-dimensional blackbody radiation at
Hawking temperature with appropriate chemical potential. 相似文献
3.
Xiao-Xiong Zeng Xiong-Wei Liu Shu-Zheng Yang 《General Relativity and Gravitation》2008,40(12):2533-2542
Hawking radiation of particles with electric and magnetic charges from the Einstein–Maxwell-Dilaton–Axion black hole is derived
via the anomaly cancellation method, initiated by Robinson and Wilczek and elaborated by Banerjee and Kulkarni recently. We
reconstruct the electromagnetic field tensor to redefine the gauge potential and equivalent charge corresponding to the source
with electric and magnetic charges. We only adopt the covariant gauge and gravitational anomalies to discuss the near-horizon
quantum anomaly in the dragging coordinate frame. Our result shows that Hawking radiation in this case also can be reproduced
from the viewpoint of anomaly. 相似文献
4.
Based on the anomaly cancellation method, initiated by Robinson and Wilczek, we investigate Hawking radiation from the event horizon and cosmological horizon of the higher dimensional Reissner–Nordström–de Sitter black hole via covariant gauge and gravitational anomalies. Unlike in black hole space-time, to describe the observable physics, the effective field theory here is constructed between the event horizon and cosmological horizon. Our result shows that to restore the underlying gauge covariance and diffeomorphism covariance at the quantum level, the covariant compensating fluxes of gauge and energy–momentum tensor, which are shown to equal to those of Hawking radiation, should be radiated from the event horizon and absorbed from the cosmological horizon, respectively. 相似文献
5.
Hawking radiation from the cylindrical symmetric black hole, which is asymptotically anti-de Sitter not only in the transverse
direction but also in the string or membrane direction, is discussed from the anomaly point of view. We implement the covariant
anomaly cancellation method, the more refined formalism that was proposed by Banerjee and Kulkarni recently than the initial
work of Robinson et al., to discuss the near-horizon gauge and gravitational anomalies. Our result shows that Hawking radiation
from the cylindrical configurations with horizons also can be reproduced by the anomaly cancellation method. 相似文献
6.
Shao-Wen Wei Ran Li Yu-Xiao Liu Ji-Rong Ren 《The European Physical Journal C - Particles and Fields》2010,65(1-2):281-287
Considering gravitational and gauge anomalies at the horizon, a new method to derive Hawking radiation from black holes has been developed by Wilczek et al. In this paper, we apply this method to non-rotating and rotating Kaluza–Klein black holes with squashed horizon, respectively. For the rotating case, we found that, after dimensional reduction, an effective U(1) gauge field is generated by an angular isometry. The results show that the gauge current and energy-momentum tensor fluxes are exactly equivalent to Hawking radiation from the event horizon. 相似文献
7.
M.R. Setare 《The European Physical Journal C - Particles and Fields》2007,49(3):865-868
In this paper we obtain the flux of Hawking radiation from rotating BTZ black holes from the gauge and gravitational anomalies
point of view. Then we show that the gauge and gravitational anomaly in BTZ spacetime is cancelled by the total flux of a
2-dimensional blackbody at the Hawking temperature of the spacetime. 相似文献
8.
Recently, Banerjee and Kulkarni (R. Banerjee, S. Kulkarni, arXiv: 0707. 2449 [hep-th]) suggested that it is conceptually clean
and economical to use only the covariant anomaly to derive Hawking radiation from a black hole. Based upon this simplified
formalism, we apply the covariant anomaly cancellation method to investigate Hawking radiation from a modified Schwarzschild
black hole in the theory of rainbow gravity. Hawking temperature of the gravity’s rainbow black hole is derived from the energy-momentum
flux by requiring it to cancel the covariant gravitational anomaly at the horizon. We stress that this temperature is exactly
the same as that calculated by the method of cancelling the consistent anomaly. 相似文献
9.
The gauge structure of anomalies and the related currents is analyzed in detail. We construct the covariant forms for both the currents and the anomalies for general gauge theories in even-dimensional space-time. The results are then extended to determine the structure of gravitational anomalies. These can always be interpreted as anomalies for local Lorentz transformations. 相似文献
10.
M. Visinescu 《Physics of Atomic Nuclei》2012,75(10):1299-1304
Hidden symmetries in a covariant Hamiltonian framework are investigated. The special role of the Stackel-Killing and Killing-Yano tensors is pointed out. The covariant phase-space is extended to include external gauge fields and scalar potentials. We investigate the possibility for a higher-order symmetry to survive when the electromagnetic interactions are taken into account. Aconcrete realization of this possibility is given by the Killing-Maxwell system. The classical conserved quantities do not generally transfer to the quantized systems producing quantum gravitational anomalies. As a rule the conformal extension of the Killing vectors and tensors does not produce symmetry operators for the Klein-Gordon operator. 相似文献
11.
Quantum gauge theory of gravity is formulated based on gauge principle. Because the Lagrangian has strict local gravitational gauge symmetry, gravitational gauge theory is a perturbatively renormalizable quantum theory. Gravitational gauge interactions of scalar field are studied in this paper. In quantum gauge theory of gravity, scalar field minimal couples to gravitational field through gravitational gauge covariant derivative. Comparing the Lagrangian for scalar field in quantum gauge theory of gravity with the corresponding Lagrangian in quantum fields in curved space-time, the definition for metric in curved space-time in geometry picture of gravity can be obtained, which is expressed by gravitational gauge field. In classical level, the Lagrangian and Hamiltonian approaches are also discussed. 相似文献
12.
In this paper, we mainly investigate the anomalous effective action of the rotating Taub-NUT black hole and show that the
flux of Hawking radiation can be determined by anomaly cancellation conditions and regularity requirement at the event horizon.
With the method of a dimensional reduction technique, that is, the (1+1) dimensional quantum anomalies equation, we successfully
obtain the simplified metric near the horizon. In addition, the covariant energy-momentum tensor that is related with Hawking
temperature are calculated in this black hole. 相似文献
13.
J. Brian Pitts 《General Relativity and Gravitation》2010,42(3):601-622
The problem of finding a covariant expression for the distribution and conservation of gravitational energy–momentum dates
to the 1910s. A suitably covariant infinite-component localization is displayed, reflecting Bergmann’s realization that there
are infinitely many conserved gravitational energy–momenta. Initially use is made of a flat background metric (or rather,
all of them) or connection, because the desired gauge invariance properties are obvious. Partial gauge-fixing then yields
an appropriate covariant quantity without any background metric or connection; one version is the collection of pseudotensors
of a given type, such as the Einstein pseudotensor, in every coordinate system. This solution to the gauge covariance problem is easily adapted to any pseudotensorial expression (Landau–Lifshitz,
Goldberg, Papapetrou or the like) or to any tensorial expression built with a background metric or connection. Thus the specific
functional form can be chosen on technical grounds such as relating to Noether’s theorem and yielding expected values of conserved
quantities in certain contexts and then rendered covariant using the procedure described here. The application to angular
momentum localization is straightforward. Traditional objections to pseudotensors are based largely on the false assumption
that there is only one gravitational energy rather than infinitely many. 相似文献
14.
Using the theory of the anomalous (chiral) effective action and covariant anomalies method, the Hawking radiation from NUT-Kerr-Newman-Kusuya
black hole is researched. In this paper, the electric charge parameter and magnetic monopole parameter are rewritten as equivalent
parameter. In addition, we simplify the metric as 1+1 dimensional effective metric. Finally, with the method of anomalous
effective action and covariant anomalies respectively, we calculate the chiral covariant current and covariant energy-momentum
tensor. 相似文献
15.
Gravitational interactions of Dirac field are
studied in this paper. Based on gauge principle, quantum gauge
theory of gravity, which is perturbatively renormalizable, is
formulated in the Minkowski space-time. In quantum gauge theory of
gravity, gravity is treated as a kind of fundamental interactions,
which is transmitted by gravitational gauge field, and Dirac field
couples to gravitational field through gravitational gauge
covariant derivative. Based on this theory, we can easily explain
gravitational phase effect, which has already been detected by COW
experiment. 相似文献
16.
We propose a systematic procedure for extracting gauge invariant and gauge fixed actions for various higher-spin gauge field theories from covariant bosonic open string field theory. By identifying minimal gauge invariant part for the original free string field theory action, we explicitly construct a class of covariantly gauge fixed actions with BRST and anti-BRST invariance. By expanding the actions with respect to the level N of string states, the actions for various massive fields including higher-spin fields are systematically obtained. As illustrating examples, we explicitly investigate the level N?3 part and obtain the consistent actions for massive graviton field, massive 3rd rank symmetric tensor field, or anti-symmetric field. We also investigate the tensionless limit of the actions and explicitly derive the gauge invariant and gauge fixed actions for general rank n symmetric and anti-symmetric tensor fields. 相似文献
17.
18.
Quantum gauge theory of gravity is formulated based on gauge principle. Because the Lagrangian hasstrict local gravitational gauge symmetry, gravitational gauge theory is a perturbatively renormalizable quantum theory.Gravitational gauge interactions of scalar field are studied in this paper. In quantum gauge theory of gravity, scalar fieldminimal couples to gravitational field through gravitational gauge covariant derivative. Comparing the Lagrangian forscalar field in quantum gauge theory of gravity with the corresponding Lagrangian in quantum fields in curved space-time, the definition for metric in curved space-time in geometry picture of gravity can be obtained, which is expressedby gravitational gauge field. In classical level, the Lagrangian and Hamiltonian approaches are also discussed. 相似文献
19.
QI De-Jiang 《理论物理通讯》2011,56(6):1171-1174
The aim of this paper is to investigate Hawking radiation of Dirac particles from the Dilaton space-time with squashed horizons by improving the method of Kerner and Man's tunneling analysis. We construct appropriate matrices for general covariant Dirac equation, and derive the tunneling probability and Hawking temperature. The results show that both Dirac particles and scalar particles radiate at the same Hawking temperature. 相似文献
20.
In this paper, Hawking radiation from the Kerr Newman de Sitter black hole is studied via gauge anomaly and gravitational anomaly. The obtained results of Hawking radiation from the event horizon and the cosmological horizon accord with those by other methods. 相似文献