共查询到20条相似文献,搜索用时 15 毫秒
1.
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
2.
We obtain, using a reformulation of the tunneling mechanism, the Hawking black body spectrum with the appropriate temperature for a black hole. This is a new result in the tunneling formalism of discussing Hawking effect. Our results are given for a spherically symmetric geometry that is asymptotically flat. 相似文献
3.
4.
ZHAO Ren LI HuaiFan ZHANG LiChun & WU YueQin Institute of Theoretical Physics Shanxi Datong University 《中国科学:物理学 力学 天文学(英文版)》2010,(3)
This study extends the classical Damour-Ruffini method and discusses Hawking radiation in a (n + 4)-dimensional rotating black hole. Under the condition that the total energy and angular momentum of spacetime are conservative, but angular momentum a = J/M of unit mass of the black hole is variable, taking into consideration the reaction of the radiation of the particle to the spacetime, a new Tortoise coordinate transformation and discuss the black hole radiation spectrum is discussed. The radiation spectru... 相似文献
5.
This paper discusses tunneling of scalar particles and
Dirac particles from the Taub-NUT-AdS black hole by the
Hamilton--Jacobi equation, initially used by Angheben et al,
and the Dirac equation, recently proposed by Kerner and Mann.
This is performed in the dragging coordinate frame so
as to avoid the ergosphere dragging effect. A general
form is obtained for the temperature of scalar and Dirac particles tunneling
from the Taub-NUT-Ads black hole, which is commensurate with other
methods as expected. 相似文献
6.
Based on the work of Kerner and Mann, fermions tunneling from the Horowitz-Strominger Dilaton black hole on the membrane is
studied. Owing to the coupling among electromagnetic field, matter field and gravity field, the Dirac equation of charged
particles is introduced, and according to that, the expected emission temperature is obtained. After the self-gravitational
interaction is considered, it is found that the tunneling rate of fermions also satisfies the underlying Unitary theory as
the case of scalar particles.
Supported by the Natural Science Foundation of Sichuan Education Office (Grant No. 07ZC039) 相似文献
7.
Borun D. Chowdhury 《Pramana》2008,70(1):3-26
It is shown that exp(−2 Im(∫ p dr)) is not invariant under canonical transformations in general. Specifically for shells tunneling out of black holes, this
quantity is not invariant under canonical transformations. It can be interpreted as the transmission coefficient only in the
cases in which it is invariant under canonical transformations. Although such cases include alpha decay, they do not include
the tunneling of shells from black holes. The simplest extension to this formula which is invariant under canonical transformations
is proposed. However, it is shown that this gives half the correct temperature for black holes.
相似文献
8.
This paper investigated the massive particle radiation from Gibbons-Maeda black hole by using a semi-classical method.The calculations showed that,if the self-gravitation of the radiated particle is taken into account,the radiation spectrum deviates from exact black body spectrum and the rate of tunneling equals precisely the exponent of the difference of the black hole entropies before and after emission.The conclusion supports the viewpoint of information conservation. 相似文献
9.
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
10.
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
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.
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
13.
Li-Xin Li 《General Relativity and Gravitation》1996,28(10):1171-1175
A thermodynamical approach is used to solve the back-reaction problem of the Kerr black hole; the dressed mass, the dressed angular momentum, and the dressed entropy are calculated. 相似文献
14.
15.
We study the effects of noncommutative spaces on the horizon, the area spectrum and Hawking temperature of a Schwarzschild
black hole. The results show deviations from the usual horizon, area spectrum and the Hawking temperature. The deviations
depend on the parameter of space/space noncommutativity. 相似文献
16.
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
17.
In this paper, we extend Zhang and Zhao's recent work to the black
hole with a mass-quadruple moment. The behaviour of the tunnelling
massive particles is investigated, and the emission rate at which
massive particles tunnel across the event horizon of the black hole
is calculated. The result is consistent with an underlying unitary
theory, and takes the same functional form as that of a massless
particle. 相似文献
18.
利用Damour-Ruffini方法研究了Reissner-Nordstrom黑洞的Hawking辐射,在考虑辐射能量对背景时空反作用的情况下,发现辐射谱不再是理想的热谱. 得到的修正后的Hawking辐射谱,有可能从黑洞中带出信息,进而用来解释黑洞信息丢失佯谬问题,同时满足量子理论的幺正性. 这里的讨论不仅适合于无静止质量的粒子,而且适合于有静止质量的粒子;不仅适合于标量粒子,而且适合于Dirac粒子;具有广泛的适用性. 相似文献
19.
Hawking radiation from the with a global monopole via Schwarzschild black hole gravitational anomaly 下载免费PDF全文
This paper derives the Hawking flux from the Schwarzschild black hole with a global monopole by using Robinson and Wilczek's method. Adopting a dimensional reduction technique, it can describe the effective quantum field in the (3 + 1)-dimensional global monopole background by an infinite collection of the (1 + 1)-dimensional massless fields if neglecting the ingoing modes near the horizon, where the gravitational anomaly can be cancelled by the (1 + 1)- dimensional black body radiation at the Hawking temperature. 相似文献
20.
Recent research shows that Hawking radiation from black hole horizon can be treated as a quantum tunneling process, and fermions tunneling method can successfully recover Hawking temperature. In this tunneling framework, choosing a set of appropriate matrices γ^μ is an important technique for fermions tunneling method. In this paper, motivated by Kerner and Man's fermions tunneling method of 4 dimension black holes, we further improve the analysis to investigate Hawking tunneling radiation from a rotating charged black hole in 5-dimensional gauged supergravity by constructing a set of appropriate matrices γ^μ for general covariant Dirac equation. Finally, the expected Hawking temperature of the black hole is correctly recovered, which takes the same form as that obtained by other methods. This method is universal, and can also be directly extend to the other different-type 5-dimensional charged black holes. 相似文献