论文标题
围绕二元型电荷黑洞周围的粒子动力学
Particle dynamics around a dyonic charged black hole
论文作者
论文摘要
在本文中，我们研究了Kerr-Newman-Kasuya Black Hole时段周围粒子和众所周知的Penrose机制的圆形运动。在自旋和对照型电荷的效果下简要检查了上述黑洞的内部和外部地平线以及上述黑洞的厄尔戈斯曲面。此外，通过将我们的勘探限制在赤道平面上，我们讨论了圆形测量学的特征，并研究了光子，以及边缘稳定的圆形轨道。值得注意的是，黑洞电荷减少了光子的半径和边缘稳定的圆形轨道。为了研究粒子动力学的性质，我们研究了有效的潜力和Lyapunov指数。在检查能量提取过程时，我们得出了WALD不平等，这可以帮助我们找到Penrose过程的能量限制。此外，我们发现了负能量状态的表达和能量提取的效率。获得的结果表明，黑洞旋转和敌对电荷都有助于提取能量的效率。
In this article, we study the circular motion of particles and the well-known Penrose mechanism around a Kerr-Newman-Kasuya black hole spacetime. The inner and outer horizons, as well as ergosurfaces of the said black hole, are briefly examined under the effect of spin and dyonic charge. Moreover, by limiting our exploration to the equatorial plane, we discuss the characteristics of circular geodesics and investigate both photons, as well as marginally stable circular orbits. It is noted that black hole charge diminishing the radii of photon and marginally stable circular orbits. To investigate the nature of particle dynamics, we studied the effective potential and Lyapunov exponent. While inspecting the process of energy extraction, we derived the Wald inequality, which can help us to locate the energy limits of the Penrose process. Furthermore, we have found expressions for the negative energy states and the efficiency of energy extraction. The obtained result illustrates that both black hole rotation and dyonic charge contributes to the efficiency of energy extraction.
