Advances In High Energy Physics Research Articles

Holographic Dark Energy with Extended Chaplygin Gas Model

In this paper we consider a correspondence between holographic dark energy density and extended Chaplygin gas energy density proposed by Pourhassan and Kahya [2014] (Advances in High Energy Physics, 231452, 2014) in FRW universe. We solve the Friedmann equation and investigate the be- haviour of cosmological parameters and also we reconstruct the potential and dynamics of the scalar field which describe the extended Chaplygin gas cosmology.

London-Proca-Hirsch Equations for Electrodynamics of Superconductors on Cantor Sets

In a recent paper published at Advances in High Energy Physics (AHEP) journal, Yang Zhao et al. derived Maxwell equations on Cantor sets from the local fractional vector calculus. It can be shown that Maxwell equations on Cantor sets in a fractal bounded domain give efficiency and accuracy for describing the fractal electric and magnetic fields. However, so far there is no derivation of equations for electrodynamics of superconductor on Cantor sets. Therefore, in this paper I present for the first time a derivation of London-Proca-Hirsch equations on Cantor sets. The name of London-Proca-Hirsch is proposed because the equations were based on modifying Proca and London-Hirsch’s theory of electrodynamics of superconductor. Considering that Proca equations may be used to explain electromagnetic effects in superconductor, I suggest that the proposed London-Proca-Hirsch equations on Cantor sets can describe electromagnetic of fractal superconductors. It is hoped that this paper may stimulate further investigations and experiments in particular for fractal superconductor. It may be expected to have some impact to fractal cosmology modeling too.

London-Proca-Hirsch Equations for Electrodynamics of Superconductors on Cantor Sets

In a recent paper published at Advances in High Energy Physics (AHEP) journal, Yang Zhao et al. derived Maxwell equations on Cantor sets from the local fractional vector calculus. It can be shown that Maxwell equations on Cantor sets in a fractal bounded domain give efficiency and accuracy for describing the fractal electric and magnetic fields. However, so far there is no derivation of equations for electrodynamics of superconductor on Cantor sets. Therefore, in this paper I present for the first time a derivation of London-Proca-Hirsch equations on Cantor sets. The name of London-Proca-Hirsch is proposed because the equations were based on modifying Proca and London-Hirsch’s theory of electrodynamics of superconductor. Considering that Proca equations may be used to explain electromagnetic effects in superconductor, I suggest that the proposed London-Proca-Hirsch equations on Cantor sets can describe electromagnetic of fractal superconductors. It is hoped that this paper may stimulate further investigations and experiments in particular for fractal superconductor. It may be expected to have some impact to fractal cosmology modeling too.

A Derivation of Proca Equations on Cantor Sets: A Local Fractional Approach

In a recent paper published at Advances in High Energy Physics (AHEP) journal, Yang Zhao et al. derived Maxwell equations on Cantor sets from the local fractional vector calculus. It can be shown that Maxwell equations on Cantor sets in a fractal bounded domain give efficiency and accuracy for describing the fractal electric and magnetic fields. Using the same approach, elsewhere Yang, Baleanu & Tenreiro Machado derived systems of Navier-Stokes equations on Cantor sets. However, so far there is no derivation of Proca equations on Cantor sets. Therefore, in this paper we present for the first time a derivation of Proca equations and GravitoElectroMagnetic (GEM) Proca-type equations on Cantor sets. Considering that Proca equations may be used to explain electromagnetic effects in superconductor, We suggest that Proca equations on Cantor sets can describe electromagnetic of fractal superconductors; besides GEM Proca-type equations on Cantor sets may be used to explain some gravitoelectromagnetic effects of superconductor for fractal media. It is hoped that this paper may stimulate further investigations and experiments in particular for fractal superconductor. It may be expected to have some impact to fractal cosmology modeling too.

Simulations of planar edgeless silicon detectors with a current terminating structure

Recent advances in high-energy physics have uttered the need for silicon detectors with a minimised dead volume at their physical edge. Such devices will be used in the TOTEM experiment (Total and Elastic Cross-section Measurement) at the Large Hadron Collider (LHC). A hypothetical structure of such detectors has been implemented into the ISE-TCAD simulation package by Synopsys and macroscopic quantities such as detector leakage current and charge collection efficiency have been computed and successfully compared to experimental values, yielding a better insight into the microscopic structure of these devices.

CREATION OF PARTICLES AND ENTROPY IN THE EARLY FRIEDMANN UNIVERSE

International Journal of Modern Physics DVol. 03, No. 04, pp. 731-738 (1994) PapersNo AccessCREATION OF PARTICLES AND ENTROPY IN THE EARLY FRIEDMANN UNIVERSEA.A. GRIB and V. YU. DOROFEEVA.A. GRIBFriedmann Laboratory of Theoretical Physics, Saint-Petersburg, Griboyedov can. 30/32, Russia and V. YU. DOROFEEVFriedmann Laboratory of Theoretical Physics, Saint-Petersburg, Griboyedov can. 30/32, Russiahttps://doi.org/10.1142/S0218271894000848Cited by:13 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail This is an extended version of a talk presented at the 8th Russian Gravitational Conference (Pushchino, 25–28 May 1993). You currently do not have access to the full text article. Recommend the journal to your library today! FiguresReferencesRelatedDetailsCited By 13Gravitational radiation from the collision of particlesM. A. Misyura31 January 2020 | International Journal of Modern Physics A, Vol. 35, No. 02n03Graviatom of Superheavy Dark Matter as a Source of Gravitational RadiationM. A. Misyura24 August 2018 | Gravitation and Cosmology, Vol. 24, No. 3Graviatom of superheavy dark matter as a source of gravitational radiationM A Misyura and A A Grib15 June 2018 | Journal of Physics: Conference Series, Vol. 1038Particle creation in the early Universe: Achievements and problemsA. A. Grib and Yu. V. Pavlov25 May 2016 | Gravitation and Cosmology, Vol. 22, No. 2Black holes and high energy physicsA. A. Grib and Yu. V. Pavlov20 January 2016 | International Journal of Modern Physics A, Vol. 31, No. 02n03On creation of scalar particles with Gauss-Bonnet type coupling to curvature in Friedmann cosmological modelsYu. V. Pavlov26 March 2014 | Gravitation and Cosmology, Vol. 20, No. 1Graviatoms with de Sitter InteriorIrina Dymnikova and Michael Fil’chenkov1 Jan 2013 | Advances in High Energy Physics, Vol. 2013SUPERHEAVY PARTICLES AS DARK MATTER AND THEIR ROLE IN CREATION OF VISIBLE MATTER IN ACTIVE GALACTIC NUCLEI AND THE EARLY UNIVERSEA. A. GRIB and YU. V. PAVLOV25 January 2012 | International Journal of Modern Physics A, Vol. 24, No. 08n09Active galactic nuclei and transformation of dark matter into visible matterA. A. Grib and Yu. V. Pavlov12 March 2009 | Gravitation and Cosmology, Vol. 15, No. 1DO ACTIVE GALACTIC NUCLEI CONVERT DARK MATTER INTO VISIBLE PARTICLES?A. A. GRIB and YU. V. PAVLOV21 November 2011 | Modern Physics Letters A, Vol. 23, No. 16Is dark matter the relic of the primordial matter that created the visible matter of the universe?A. A. Grib and Yu. V. Pavlov12 April 2008 | Gravitation and Cosmology, Vol. 14, No. 1COLD DARK MATTER AND PRIMORDIAL SUPERHEAVY PARTICLESA. A. GRIB and YU. V. PAVLOV25 January 2012 | International Journal of Modern Physics A, Vol. 17, No. 29SUPERHEAVY PARTICLES IN FRIEDMANN COSMOLOGY AND THE DARK MATTER PROBLEMA. A. GRIB and YU. V. PAVLOV25 January 2012 | International Journal of Modern Physics D, Vol. 11, No. 03 Recommended Vol. 03, No. 04 Metrics History Received 1 October 1993 PDF download

A FULL-ACCEPTANCE DETECTOR FOR SSC PHYSICS AT LOW AND INTERMEDIATE MASS SCALES: AN EXPRESSION OF INTEREST TO THE SSC

A FULL-ACCEPTANCE DETECTOR FOR SSC PHYSICS AT LOW AND INTERMEDIATE MASS SCALES: AN EXPRESSION OF INTEREST TO THE SSC

THE ORIGINS OF SKYRMIONS

The author discusses three motives for trying to make a model of the kind we discussed in this paper: unification, the renormalisation problem, and what he calls the fermion problem. Unification of one kind or another has always been a goal of theoretical physicists. The other two problems are of course very modern ones, and specific to quantum field theory. They are addressed in this paper.

Expansion of the early Universe and the equation of state.

New advances in high-energy physics concerning the equation of state and the phase transition from quark-gluon plasma to hadronic matter are used to investigate the hydrodynamical expansion of the Universe by solving the equations of hydrodynamics and the Einstein gravitational equations.

Review of recent advances in high energy physics

This lecture reviews the main advances of high energy physics in the last decade, a period during which a number of major developments took place in our knowledge of the constituents of matter and of the basic laws of interaction. After a brief historical introduction, the lecture discusses quarks and leptons which are now recognized to be microscopic constituents of matter. It then proceeds with a review of recent progress concerning the electromagnetic, weak and strong interactions, both experimentally and theoretically. The trend towards unified theories of the basic interactions is discussed, in particular the so-called electroweak theory, which combines the electromagnetic and weak interactions. The lecture ends with remarks on novel aspects of the general theoretical situation, and with some considerations on the future outlook of high energy physics.

Fractional-Millimicrosecond Oscilloscope System Utilizing Commerically Available Components

Equipment for use with signal rise times slower than a millimicrosecond is readily available commercially. Recent advances in high-energy physics have directed attention toward research in the fractional-mμsec region. The fundamental tools for such research are pulse generators and oscilloscopes. Suitable pulse generators are commerically available, but suitable oscilloscope systems are not. There are two important factors that account for the lack of such oscilloscopes. One is that contemporary amplifiers are useless in the fractional-mμsec region. The second is that output timing in commonly used trigger circuits is too sensitive to changes in input amplitude. This paper describes an internally synchronized oscilloscope system utilizing commercially available components, which provides less than 2% signal reflection at the sync takeoff point, and has less than 5×10−12 second of sweep-timing change per percent change in input amplitude (for amplitudes in excess of 30 trace widths).

Recent advances in high-energy physics

The past year has seen what may turn out to be the start of great progress in our understanding of meson problems. This was brought into focus at the Third Annual Rochester Conference on High-Energy Physics, held December 18–20, 1952, and the topics discussed there form a convenient framework for presenting recent work in this field. The series of Rochester conferences, organized by R. E. Marshak and made possible by the support of a group of Rochester industries together, in the present instance, with that of the National Science Foundation, has consisted of informal sessions in which the latest experimental and theoretical results have been mulled over by representatives of most of the American and some of the foreign groups directly concerned with high-energy physics.