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1.
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
2.
We derive the metric for a Schwarzschild black hole with global monopole charge by relaxing asymptotic flatness of the Schwarzschild
field. We then study the effect of global monopole charge on particle orbits and the Hawking radiation. It turns out that
existence, boundedness and stability of circular orbits scale up by (1−8πη
2)−1, and the perihelion shift and the light bending by (1−8πη
2)−3/2, while the Hawking temperature scales down by (1−8πη
2)2 the Schwarzschild values. Hereη is the global charge. 相似文献
3.
We have studied the Hawking radiation of the Kerr-Newman-Kasuya black hole via gauge and gravitational anomaly in the dragging coordinates. The fluxes of the electromagnetic current and the energy momentum tensor for each partial wave in two-dimensional field are obtained. 相似文献
4.
Hawking radiation from the charged and magnetized BTZ black hole via covariant anomaly 总被引:1,自引:0,他引:1 下载免费PDF全文
This paper discusses Hawking radiation from the charged and
magnetized Ba?ados--Teitelboim--Zanelli (BTZ) black hole from
the viewpoint of anomaly, initiated by Robinson and Wilczek
recently. It reconstructs the electromagnetic field tensor and the
Lagrangian of the field corresponding to the source with electric
and magnetic charges to redefine an equivalent charge and gauge
potential. It employs the covariant anomaly cancellation method to
determine the compensating fluxes of charge flow and energy-momentum
tensor, which are shown to match with those of the 2-dimensional
blackbody radiation at the Hawking temperature exactly. 相似文献
5.
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
6.
7.
Based on the anomaly cancellation method, initiated by Robinson and Wilczek, we investigates Hawking radiation from the modified Schwarzschild black hole from gravity's rainbow from the anomaly point of view. Unlike the general Schwarzschild space-time, the metric of this black hole depends on the energies of probes. The obtained result shows to restore the underlying general covariance at the quantum level in the effective field, the covariant compensating flux of energy-momentum tensor, which is related to the energies of the probes, should precisely equal to that of a (1 + 1)-dimensional blackbody at the Hawking temperature. 相似文献
8.
9.
We investigate Hawking radiation from a five-dimensional Lovelock black hole using the Hamilton–Jacobi method. The behavior of the rate of radiation is plotted for various values of the ultraviolet correction parameter and the cosmological constant. The results show that, owing to the ultraviolet correction and the presence of dark energy represented by the cosmological constant, the black hole radiates at a slower rate in comparison to the case without ultraviolet correction or cosmological constant. Moreover, the presence of the cosmological constant makes the effect of the ultraviolet correction on the black hole radiation negligible. 相似文献
10.
We present a short and direct derivation of Hawking radiation by using the Damour-Ruffini method, as taking into account the self-gravitational interaction from the Kerr black hole. It is found that the radiation is not exactly thermal, and because the derivation obeys conservation laws, the non-thermal Hawking radiation can carry information from the black hole. So it can be used to explain the black hole information paradox, and the process satisfies unitary. 相似文献
11.
We present a short and direct derivation of Hawking radiation by using the Damour-Ruffini method, as taking into account the self-gravitational interaction from the Kerr black hole. It is found that the radiation is not exactly thermal, and because the derivation obeys conservation laws, the non-thermal Hawking radiation can carry information from the black hole. So it can be used to explain the black hole information paradox, and the process satisfies unitary. 相似文献
12.
CHEN Shi-Wu LIU Xiong-Wei LIN Kai ZENG Xiao-Xiong YANG Shu-Zheng 《理论物理通讯》2008,50(8):537-540
Hawking radiation from cosmological horizon and event horizon of the Reissner-Nordstrom de Sitter black hole with a global monopole is studied via a new method that was propounded by Robinson and Wilzek and elaborated by Banerjee and Kulkarni. The results show that the gauge current and energy-momentum tensor fluxes, which required keeping gauge covariance and general coordinate invariance at the quantum level in the effective field theory, are exactly equivalent to those of Hawking radiation from the event horizon and the cosmological horizon, respectively. 相似文献
13.
用Hamilton-Jacobi方法研究了动态球对称Einstein-Yang-Mills-Chern-Simons 黑洞事件视界处的隧穿辐射特征及其黑洞事件视界处的温度. 其结果表明,黑洞温度及隧穿率与黑洞的固有性质及其动态特征有关. 这对于进一步研究动态黑洞的热力学性质及其相关问题是有意义的. 其方法的重要意义在于研究这类动态黑洞的霍金辐射时, 不仅适用于标量场隧穿辐射的情形, 同时也适用于研究旋量场、矢量场以及引力波的隧穿辐射.
关键词:
Einstein-Yang-Mills-Chern-Simons黑洞
霍金隧穿辐射
Hamilton-Jacobi方程 相似文献
14.
Hawking radiation is viewed as a tunnelling process. In this way the
emission rates of massless particles and massive particles tunnelling
across the event horizon of general stationary axisymmetric black
holes are calculated, separately. The emission spectra of these two
different kinds of outgoing particles have the same functional form
and both are consistent with an underlying unitary theory. 相似文献
15.
Non-equilibrium Landauer transport model for Hawking radiation from a Reissner—Nordstrom black hole 下载免费PDF全文
The recent work of Nation et al., in which the Hawking radiation energy and entropy flow from a black hole is considered to be produced in a one-dimensional Landauer transport process, is extended to the case of a Reissner- Nordstrom black hole. The energy flow contains not only the contribution of the thermal flux but also that of the particle flux. It is found that the charge can also be transported via the one-dimensional quantum tunnel. Because of the existence of the electrostatic potential, the entropy production rate is shown to be smaller than that of the Schwarzschild black hole. 相似文献
16.
Using the Hamilton-Jacobi method, Hawking radiation from the apparent horizon of a dynamical Vaidya black hole is calculated. The black hole thermodynamics can be built successfully on the apparent horizon. If a relativistic perturbation is given to the apparent horizon, a similar calculation can also lead to a purely thermal spectrum, which corresponds to a modified temperature from the former. The first law of thermodynamics can also be constructed successfully at a new supersurface which has a small deviation from the apparent horizon. When the event horizon is thought as such a deviation from the apparent horizon, the expressions of the characteristic position and temperature are consistent with the previous result that asserts that thermodynamics should be built on the event horizon. It is concluded that the thermodynamics should be constructed on the apparent horizon exactly while the event horizon thermodynamics is just one of the perturbations near the apparent horizon. 相似文献
17.
Hawking radiation from cosmological horizon and event horizon of the Reissner-Nordström de Sitter black hole with a global monopole is studied via a new method that was propounded by Robinson and Wilzek and elaborated by Banerjee and Kulkarni. The results show that the gauge current and energy-momentum tensor fluxes, which required keeping gauge covariance and general coordinate invariance at the quantum level in the effective field theory, are exactly equivalent to those of Hawking radiation from the event horizon and the cosmological horizon,
respectively. 相似文献
18.
在直线加速Kinnersley时空中,将相互耦合的Dirac方程化为二阶方程,采用新的乌龟坐标变换,在视界面附近消除二阶方程中的耦合化成了标准波动方程,得到辐射温度函数和Hawking热辐射谱.
关键词:
黑洞
Dirac方程
乌龟坐标变换
Hawking辐射 相似文献
19.
在直线加速Kinnersley时空中,将相互耦合的Dirac方程化为二阶方程,采用新的乌龟坐标变换,在视界面附近消除二阶方程中的耦合化成了标准波动方程,得到辐射温度函数和Hawking热辐射谱. 相似文献
20.
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