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Discussion on event horizon and quantum ergosphere of dynamic rotating black holes in a tunneling framework
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作者 刘佰生 张靖仪 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第7期162-167,共6页
According to the Parikh–Wilczek tunneling framework, the locations of the local horizons of dynamic rotating black holes can be worked out. The calculations show that the quantum ergosphere of the black hole is ident... According to the Parikh–Wilczek tunneling framework, the locations of the local horizons of dynamic rotating black holes can be worked out. The calculations show that the quantum ergosphere of the black hole is identical with the tunneling potential barrier set by particle’s tunneling across the relevant horizon. Then, some discussions on the origin of the Hawking radiation will be shown. 展开更多
关键词 Hawking radiation dynamic rotating black holes tunneling framework quantum ergosphere
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Matter Reactors
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作者 Rami Rom 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2023年第2期455-460,共6页
In a previous paper, we proposed that a QCD gas that may be a possible candidate for the general theory of gravity (GR) ether may be comprised of u<sub>d</sub>~</sup>d<sub>u</sub>~</su... In a previous paper, we proposed that a QCD gas that may be a possible candidate for the general theory of gravity (GR) ether may be comprised of u<sub>d</sub>~</sup>d<sub>u</sub>~</sup> exotic mesons. A method to determine the effective mass of the u<sub>d</sub>~</sup>d<sub>u</sub>~</sup> exotic meson and the Friedmann-Robertson-Walker (FRW) metric scale factor equation of state dimensionless parameter, w, by measuring the pseudo-first order β decay rates expected to be inversely proportional to the QCD gas atmospheric density was given. Here, we propose to measure the β decay rate, t<sub>1/2</sub>, and the earth distance to the milky-way galaxy super massive black hole (SMBH), h<sub>SMBH</sub>, at the earth aphelion each year for several years, and fit the data with the linear curve: -lnt<sub>1/2</sub> = ah<sub>SMBH</sub> + b. The slope parameter, a, and the free parameter, b, may be used to calculate the Kerr spin parameter and determine if the QCD gas density on the ergosphere remains constant in time, or alternatively, grows in time according to Corley and Jacobson’s proposed black hole laser process. 展开更多
关键词 Compact Exotic Mesons β Decay Rate Variability Kerr Black Hole Supermassive Black Hole Black Hole Laser Ergoregion ergosphere Hawking Radiation SUPERRADIANCE Carnot Engine FRW Metric Dark Energy
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The Principal Role of Antimatter
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作者 Rami Rom 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2023年第2期461-466,共6页
In a previous paper, we proposed that u<sub>d</sub>~</sup>d<sub>u</sub>~</sup> exotic mesons, comprised of even number of quarks and antiquarks, form a QCD gas that fills space and ... In a previous paper, we proposed that u<sub>d</sub>~</sup>d<sub>u</sub>~</sup> exotic mesons, comprised of even number of quarks and antiquarks, form a QCD gas that fills space and further proposed a method to determine the QCD gas effective mass based on a pseudo-first order β decay reaction kinetics. In a second paper, we proposed a method to determine if the QCD gas density on black hole ergospheres grows in time and hence their ergoregions act as matter reactors that break matter and antimatter symmetry by trapping antimatter particles. In this paper, we suggest that quark and antiquark pair exchange reactions between particles and the QCD gas may accelerate or decelerate particles and that the quarks and antiquarks numbers are strictly conserved in these pair exchange reactions. We further suggest that antimatter plays a principal role in the universe and is inseparable from both matter, via Dirac’ spinors, and space, via the quarks and antiquarks pair exchange reactions with the QCD gas;however with a singular exception, black hole ergospheres separate and black hole ergoregions trap antimatter particles. 展开更多
关键词 General Relativity (GR) Dirac Equation QED Gravitational Ether ANTIMATTER QCD Gas Exotic Mesons Pseudo-First Order β Decay Black Hole (BH) Ergoregions ergospheres
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Kerr Black Hole Geometry Leading to Dark Matter and Dark Energy via E-Infinity Theory and the Possibility of a Nano Spacetime Singularities Reactor 被引量:8
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作者 Mohamed S. El Naschie 《Natural Science》 2015年第4期210-225,共16页
The present paper is basically a synthesis resulting from incorporating Kerr spinning black hole geometry into E-infinity topology, then letting the result bares on the vacuum zero point Casimir effect as well as the ... The present paper is basically a synthesis resulting from incorporating Kerr spinning black hole geometry into E-infinity topology, then letting the result bares on the vacuum zero point Casimir effect as well as the cosmic dark energy and dark matter density. In E-infinity theory a quantum particle is represented by a Hausdorff dimension Φ where Φ =2/(√5+1) . The quantum wave on the other hand is represented by Φ2 . To be wave and a particle simultaneously intersection theory leads us to?(Φ) (Φ)2= Φ3 which will be shown here to be twice the value of the famous Casimir force of the vacuum for a massless scalar field. Thus in the present work a basically topological interpretation of the Casimir effect is given as a natural intrinsic property of the geometrical topological structure of the quantum-Cantorian micro spacetime. This new interpretation compliments the earlier conventional interpretation as vacuum fluctuation or as a Schwinger source and links the Casimir energy to the so called missing dark energy density of the cosmos. From the view point of the present work Casimir pressure is a local effect acting on the Casimir plates constituting the local boundary condition while dark energy is nothing but the global combined effect of infinitely many quantum waves acting on the M&#246bius-like boundary of the holographic boundary of the entire universe. Since this higher dimensional M&#246bius-like boundary is one sided, there is no outside to balance the internal collective Casimir pressure which then manifests itself as the force behind cosmic expansion, that is to say, dark energy. Thus analogous to the exact irrational value of ordinary energy density of spacetime E(O)=(Φ5/2) mc2 we now have P (Casimir) = (Φ3/2)(ch/d2) where c is the speed of light, m is the mass, h is the Planck constant and d is the plate separation. In addition the new emerging geometry combined with the topology of E-infinity theory leads directly to identifying dark matter with the quasi matter of the ergosphere. As a direct consequence of this new insight E=mc2 which can be written as E = E (O) + E (D)?where the exact rational approximation is E (O)=mc2/22 is?the ordinary energy density of the cosmos and the exact rational approximation E (D)=mc2/(21/22) is the corresponding dark energy which could be subdivided once more albeit truly approximately into E(D)=mc2/(5/22)?+mc2/(16/22)??where 5 is the Kaluza Klein spacetime dimension, 16 are the bosonic extra dimensions of Heterotic superstrings and 5/22 □?22% is approximately the density of the dark matter-like energy of the ergosphere of the Kerr geometry. As for the actual design of our nano reactor, this is closely related to branching clusters of polymer, frequently called lattice animals. In other words we will have Casimir spheres instead of Casimir plates and these spheres will be basically nano particles modelling lattice animals. Here D=?4 will be regarded as spacetime dimensionality while D=6 of percolations are the compactified super string dimensions and D=8 is the dimension of a corresponding super space. 展开更多
关键词 Casimir Effect Dark ENERGY E-INFINITY Cantorian SPACETIME Kerr SPACETIME GEOMETRY ENERGY from the ergosphere Spinning Black Holes NANO SPACETIME Reactors Kaluza-Klein SPACETIME Heterotic SUPERSTRINGS
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Extraction energy from charged Vaidya black hole via the Penrose process
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作者 Vitalii Vertogradov 《Communications in Theoretical Physics》 SCIE CAS CSCD 2023年第4期87-91,共5页
In this paper,we consider the analogy of the Penrose process in charged Vaidya spacetime.We calculate the border of the generalized ergosphere,in which the charged particles with negative energy might exist,and show t... In this paper,we consider the analogy of the Penrose process in charged Vaidya spacetime.We calculate the border of the generalized ergosphere,in which the charged particles with negative energy might exist,and show that it is temporary.We show that there are no closed orbits for particles with negative energy inside the generalized ergosphere.We investigate the question about the efficiency of the Penrose process and show that one cannot extract large energies from a black hole if the velocities of ingoing and outgoing particles are of the same order.In the case of the extremal black hole,we show that the upper limit is restricted by the absolute value of the electric charge per mass. 展开更多
关键词 black hole energy extraction generalized ergosphere charged Vaidya spacetime Penroseprocess
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