Maximal efficiency of the collisional Penrose process with spinning particles in Kerr-Sen black hole

Abstract

We study the collision of two uncharged spinning particles around an extreme Kerr-Sen black hole and calculate the maximal efficiency of the energy extraction from the Kerr-Sen black hole via super Penrose process. We consider the collision of two massive particles as well as collision of a massless particle with a massive particle. For all the cases, we find that the maximum efficiency decreases as the Kerr-Sen black hole's parameter($b=1-a$) increases.

arXiv comment20 pages, 17 figures. Published version

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• Motion of a spinning particle around an improved rotating black hole
• Massless polarized particle and Faraday rotation of light in the Schwarzschild spacetime
• Connections between the shadow radius and the quasinormal modes of Kerr-Sen black hole
• Motion of spinning particles around a polymer black hole in loop quantum gravity
• Emissions of photons near the horizons of Kerr-Sen black holes
• Collisional Penrose process with spinning particles in braneworld black hole
• The effect of the WGC condition on the maximal energy extracted from black holes
• An angular rainbow of light from curved spacetime
• Deflection of Massive Spin-$\frac{1}{2}$ Particles around Kerr Black Hole
• Gravitational Lensing Effect from The Revised Deser-Woodard Nonlocal Gravity
• Conformal Invariance and Phase Transitions: Implications for Stable Black Hole Horizons?