2015/04/30 by M. Halilsoy, Ali Övgün, A. Ovgun
Physics and Astronomy · #Black Holes and Theoretical Physics #Black hole (networking) #Collision #Horizon #Naked singularity #Noncommutative and Quantum Gravity Theories #Particle (ecology) #Penrose process #Photon #Quantum Electrodynamics and Casimir Effect #Ring singularity #Singularity #gr-qc
paper · pdf · doi:10.1155/2017/4383617
published as Advances in High Energy Physics, vol. 2017, Article ID 4383617, 7 pages (2017) · 9 pages, To be published in the Advances in High Energy Physics, The special issue of "Dark Matter and Dark Energy Cosmologies and Alternative Theories of Gravitation"
arxiv created 2016/12/28 · openalex publication_date 2017/01/01 · openalex created_date 2017/01/06 · arxiv updated 2017/01/17 · openalex updated_date 2026/08/05
The unbounded center-of-mass (CM) energy of oppositely moving colliding particles near horizon emerges also in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mn fontstyle="italic">1</mml:mn><mml:mo>+</mml:mo><mml:mn fontstyle="italic">1</mml:mn></mml:math>-dimensional Horava-Lifshitz gravity. This theory has imprints of renormalizable quantum gravity characteristics in accordance with the method of simple power counting. Surprisingly the result obtained is not valid for a 1-dimensional Compton-like process between an outgoing photon and an infalling massless/massive particle. It is possible to achieve unbounded CM energy due to collision between infalling photons and particles. The source of outgoing particles may be attributed to an explosive process just outside the horizon for a black hole and the naturally repulsive character for the case of a naked singularity. It is found that absence of angular momenta in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mn fontstyle="italic">1</mml:mn><mml:mo>+</mml:mo><mml:mn fontstyle="italic">1</mml:mn></mml:math>-dimension does not yield unbounded energy for collisions in the vicinity of naked singularities.