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Introducing a new coordinate system and choosing a set of
appropriate matrices γ^μ , this paper attempts to
investigate the fermion tunneling of charged particles across the
event horizon from the Vaidya--Bonner de Sitter black hole. The result
shows that the tunneling rate of the non-static black hole is
related not only to the change of Bekenstein--Hawking entropy but
also to the integral of the changing horizon, which violates
unitary theory and is different from the stationary case. 相似文献
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LI Hui-Ling YANG Shu-Zheng 《理论物理通讯》2009,51(1):190-192
Considering the self-gravitation and energy conservation as well as charge conservation, we extend Medved and Vagenas's quantum tunneling method to the global monopole charged black hole, and give a correction to Hawking radiation of a charged particle. 相似文献
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YANG ShuZheng LI HuiLing JIANG QingQuan & LIU MenQuan Institute of Theoretical Physics China West Normal University Nanchong China 《中国科学G辑(英文版)》2007,50(2):249-260
At the event horizon and the cosmological horizon of the stationary axisymmetric Kerr-Newman black hole in the de Sitter space-time background, the tunneling rate of the charged particles is relevant with Bekenstein-Hawking entropy and the real radiation spectrum is not strictly pure thermal, but consistent with the underlying unitary theory in quantum mechanics. This is a feasible interpretation for the paradox of the black hole information loss. Taking the self-gravitation action, energy conservation, angular momentum conservation and charge conservation into account, the derived radiation spectrum is a correct amendment to the Hawking pure thermal spectrum. 相似文献
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In an approximation where the baryon current conservation is violated, the contribution of the kμkv termsin the vector meson propagator may not vanish. Their effects on the baryon and meson spectral functions and on theconsequences of self-consistency are studied in the relativistic self-consistent Hartree-Fock approximation by means ofthe σ-ω model. Two cases where the kμkv terms are and are not neglected are compared. It is found that there is amarked change in the baryon spectral function which becomes more peaked in the latter case. Such a change remainseven by a proper readjustment of parameters. The effects of self-consistency in the σ -ω model are qualitatively the samein both cases, though quantitatively there is some significant difference. 相似文献
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Qing-Quan Jiang Shu-Zheng Yang Shuang-Qing Wu 《International Journal of Theoretical Physics》2006,45(12):2274-2281
Parikh-Wilzcek’s recent work, which treats the Hawking radiation as semi-classical tunneling process from the event horizon of four dimensional Schwarzshild and Reissner- Nordström black hole, indicates that self-gravitation gives a correction to the Hawking precisely thermal spectrum and the tunneling rate is related to the change of Bekenstein- Hawking, but satisfies the underlying unitary theory. In this paper, we extend the model to study the Hawking radiation of charged particles via tunneling from arbitrarily dimensional Reissner-Nordström black holes, and obtain the same result as Parikh-Wilzcek’s. Meanwhile, in this framework, we point out that the first law of the black hole thermodynamics is reliable and the information conservation is only suitable for the reversible process. 相似文献
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By taking the energy conservation and angular momentum conservation into
account, the characteristics of the quantum-tunnelling radiation of
Einstein--Maxwell--Dilaton--Axion black hole are studied and the result shows
that the tunnelling rate of such a black hole is relevant to
Bekenstein--Hawking entropy and that the obtained radiation spectrum is not
pure thermal. 相似文献
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LI Hui-Ling YANG Shu-Zheng QI De-Jiang 《理论物理通讯》2006,46(6):991-994
Based on particles in a dynamical geometry, extending the Parikh 's method of quantum tunneling, radiation, we deeply investigate the quantum tunneling radiation of Kerr-NUT bhck hole. When self-gravitating action, energy conservation, and angular momentum conservation are taken into account, the emission rate of the particle on the event horizon is related to the change of Bekenstein-Hawking entropy and the emission spectrum is not precisely thermal, but is consistent with an underlying unitary theory. 相似文献
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ShuZheng Yang HuiLing Li QingQuan Jiang 《International Journal of Theoretical Physics》2006,45(5):965-972
Taking energy conservation and angular momentum conservation into account, the tunneling radiation characteristics of stationary axisymmetric Sen black hole is studied in this paper with the quantum tunneling method and the results show that the tunneling rate of particle at the event horizon of the black hole is relevant to Bekenstein–Hawking entropy and that the radiation spectrum is not strictly pure thermal.
PACS: 04.70_S, 97.60.Lf 相似文献
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LI Hui-Ling YANG Shu-Zheng QI De-Jiang 《理论物理通讯》2006,46(12)
Based on particles in a dynamical geometry, extending the Parikh‘s method of quantum tunneling radiation,we deeply investigate the quantum tunneling radiation of Kerr-NUT black hole. When self-gravitating action, energyconservation, and angular momentum conservation are taken into account, the emission rate of the particle on the event horizon is related to the change of Bekenstein-Hawking entropy and the emission spectrum is not precisely thermal, but is consistent with an underlying unitary theory. 相似文献
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Local structure-preserving methods for the generalized Rosenau-RLW-KdV equation with power law nonlinearity
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Local structure-preserving algorithms including multi-symplectic, local energy-and momentum-preserving schemes are proposed for the generalized Rosenau–RLW–Kd V equation based on the multi-symplectic Hamiltonian formula of the equation. Each of the present algorithms holds a discrete conservation law in any time–space region. For the original problem subjected to appropriate boundary conditions, these algorithms will be globally conservative. Discrete fast Fourier transform makes a significant improvement to the computational efficiency of schemes. Numerical results show that the proposed algorithms have satisfactory performance in providing an accurate solution and preserving the discrete invariants. 相似文献
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关于相对论质速关系推导方法的商榷 总被引:1,自引:0,他引:1
本文指出:不论用完合弹性碰撞还是完全非弹性碰撞推导相对论质速关系或相对论动量公式,两个导恒定律即动量守恒和能量或质量)守恒都是要用到的。 相似文献
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R. F. Snider 《Journal of statistical physics》1995,80(5-6):1085-1117
An important property of the classical Boltzmann equation is that kinetic energy is conserved. This is closely connected to the fact that the Boltzmann equation describes the nonequilibrium properties of an ideal gas. Generalizations of the Boltzmann equation to higher density involve, among other things, allowing the colliding particles to be at different positions. This spatial nonlocality is known to contribute to the density corrections of gas transport properties. For soft potentials such a spatial separation of the particles also leads to a conversion between kinetic and potential energy. In evaluating these effects the classical dynamics of the whole collision trajectory must be taken into account, involving also the time for the collision process. The resulting time nonlocality has usually been reinterpreted in terms of a spatial nonlocality. However, for a homogeneous system this is not possible and only the time nonlocality remains, this then being responsible for the conversion between kinetic and potential energy. This paper aims to clarify these properties of the nonlocal corrections to the classical mechanical Boltzmann collision term. Comments on the corresponding problem for the quantum Boltzmann equation are also made. 相似文献
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Difference equations and conservation laws 总被引:1,自引:0,他引:1
T. D. Lee 《Journal of statistical physics》1987,46(5-6):843-860
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