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Search Results: 1 - 10 of 138198 matches for " ZHANG Jing-Yi "
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THE ELECTROMAGNETIC FIELD TENSOR FOR THE SOURCE OF FIELD POSSESSING BOTH ELECTRIC AND MAGNETIC CHARGES IN GENERAL RELATIVITY
广义相对论中双荷场源的电磁场张量

ZHANG JING-YI,
张靖仪

物理学报 , 1999,
Abstract: A method of obtaining electromagnetic field tensor for the source of the field possessing both electric and magnetic charges is given. As an example, in Kerr-Newman space-time with a large number of magnetic charges the method is used, and the results are the same as those obtained by making electric charge a complex extension directly to e+iq.
A CONFORMALLY FLAT SOLUTION OF EINSTEIN MAXWELL EQUATIONS FOR A STATIONARY SPHERICALLY SYMMETRIC DISTRIBUTION OF SPHERE POSSESSING BOTH ELECTRIC AND MAGNETIC CHARGES
双荷静止球对称天体Einstein-Maxwell方程的共形平直内解

ZHANG JING-YI,
张靖仪

物理学报 , 1997,
Abstract: This paper gives a conformally flat interior solution of Einstein Maxwell equations for a stationary spherically symmetric distribution of sphere possessing both electric and magnetic charges. The solution is physically reasonable.
Entropy of Dirac field in a general spherically symmetric and charged evaporatin g black hole
一般球对称带电蒸发黑洞Dirac场的熵

Zhang Jing-Yi,
张靖仪

物理学报 , 2003,
Abstract: By using the thin film model,which is based on the brick-wall method,the entropy of the Dirac field in a general spherically symmetric and charged evaporating black hole is calculated.The conclusion that black hole entropy is proportional to its horizon area can still be applied by regulating the cutoff,which is time dependent.
Temperature in an arbitrary rectilinearly accelerating spacetime
任意变速参考系中引力场的温度

Zhang Jing-Yi,
张靖仪

物理学报 , 2005,
Abstract: The event horizon equation is given.Using Damour_Ruffini method improved by Zhao Zheng, the formula of temperature is obtained, which supports the result by Zhao Z (Acta Phys. Sin. 1990 39 1845) (in Chinese).
A note on the Hawking radiation calculated by the quasi-classical tunneling method
Ya-Peng Hu,Jing-Yi Zhang,Zheng Zhao
Physics , 2009, DOI: 10.1142/S0217732310031713
Abstract: Since Parikh and Wilczek's tunneling method was proposed, there have been many generalizations, such as its application to massive charged particles' tunneling and other spacetimes. Moreover, a variant tunneling method was also recently proposed by Angheben et al that it was independent of coordinates. However, there are some subtleties in the calculation of Hawking radiation, and particularly is the so-called factor of 2 problem during calculating the Hawking temperature. The most popular opinion on this problem is that it is just a problem of the choice of coordinates. However, following other treatments we show that we can also consider this problem as a problem that we do not consider the contribution from P(absorption). Moreover, we also give some subtleties in the balance method and some comparisons with other treatments. In addition, as Parikh and Wilczek's original works have showed that if one takes the tunneling particles' back-reaction into account, the Hawking radiation would be modified, and this modification is underlying consistent with the unitary theory, we further find that this modification is also underlying correlated with the laws of black hole thermodynamics. Furthermore, we show that this tunneling method may be valid just when the tunneling process is reversible.
Tunneling radiation of particles with electrical and magnetic charges
带电带磁粒子的量子隧穿辐射

Zhou Liang,Zhang Jing-Yi,
周亮
,张靖仪

物理学报 , 2010,
Abstract: 运用Parikh-Wilczek的半经典量子隧穿法,计算了带电带磁粒子穿过黑洞视界时的量子隧穿辐射谱.以带有时空拓扑缺陷的双荷Reissner-Nordstrǒm黑洞为例进行研究,计算结果表明带电带磁粒子的出射过程满足么正性原理,支持Parikh-Wilczek的结论,出射谱不再是纯热谱.
Massive particles'''' Hawking radiation via tunneling
静质量不为零的粒子的量子隧穿辐射

Zhang Jing-Yi,Zhao Zheng,
张靖仪
,赵峥

物理学报 , 2006,
Abstract: In this paper the tunneling framework is adopted to investigate the Hawking radiation. The emission rate which massive particles tunnel across the event horizon of the Schwarzschild black hole is calculated. It is consistent with an underlying unitary theory and takes the same functional form as that of massless particles.
Hawking radiation of Dirac particles in a nonuniformly rectilinearly acceleratin g black hole with electric and magnetic charge
电磁直线加速动态黑洞时空中Dirac粒子的Hawking辐射

Zhang Jing-Yi,Zhao Zheng,
张靖仪
,赵 峥

物理学报 , 2003,
Abstract: The Hawking radiation of Dirac particles on event horizon of nonuniformly rectilinearly accelerating black hole with electric and magnetic charge is studied in this paper. First, we construct the symmetrized null tetrad from which the spin coefficients and Dirac equation are derived. Next, by proposing a generalized tortoise coordinate transformation, the Dirac equation is decoupled successfully near the event horizon surface. Finally, following the method of Damour and Ruffini, the temperature on the horizon surface and the thermal spectrum formula of Dirac particles are obtained. The result is also discussed.
Entropy of Dirac field in a straightly accelerating non-stationary black hole
直线加速动态黑洞Dirac场的熵

Zhang Jing-Yi,Zhao Zheng,
张靖仪
,赵峥

物理学报 , 2002,
Abstract: 采用薄层模型brickwall方法,计算出了直线加速动态黑洞视界面上Dirac场的熵以及Rindler视界面上Dirac场的熵密度,通过适当选择时间依赖的截断因子ε和薄层厚度δ,仍可得出熵与面积成正比的结论
Tunnelling Effect and Hawking Radiation from a Vaidya Black Hole
REN Jun,ZHANG Jing-Yi,ZHAO Zheng,
任军
,张靖仪,赵峥

中国物理快报 , 2006,
Abstract: We extend Parikh's study to the non-stationary black hole. As an example of the non-stationary black hole, we investigate the tunnelling effect and Hawking radiation from a Vaidya black hole whose Bondi mass is identical to its mass parameter. The Hawking radiation is considered as a tunnelling process across the event horizon and we calculate the tunnelling probability. It is found that the is the function of Bondi mass re(υ). result is different from Parikh's study because dr H/dυ
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