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Hawking Radiation of Charged Particles in Reissner-Nordstrm Black Hole

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Communications in Theoretical Physics 2010年第3期 499-502页

作者：赵仁张丽春李怀繁 Department of Physics Institute of Theoretical Physics Shanxi Datong University Department of Physics Institute of Theoretical PhysicsShanxi Datong University

We extend the method that Banerjee and Majhi have used to discuss Hawking radiation. Under the condition that the total energy and electrical charge of spacetime are conserved, we investigate Hawking radiation of the charged black hole by a new Tortoise coordinate transformation. Taking the reaction of the radiation of the particle to the spacetime into consideration, we not only derive the radiation spectrum that satisfies the unitary principle in quantum mechanics but also show that the contribution of ingoing particles is equal to the one of outgoing particles on the similar chemical potential term in radiation spectrum caused by charged particles.

关键词： radiation spectrum quantum tunneling Hawking radiation quantum theory chemical potential

Minimum-Modified Debye-Hückel Theory for Size-Asymmetric Electrolyte Solutions with Moderate Concentrations

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Chinese Journal of chemical Physics 2023年第5期36卷 553-560,I0001,I0002页

作者： Tiejun Xiao Yun Zhou Guizhou Provincial Key Laboratory of Computational Nano-Material Science Guizhou Synergetic Innovation Center of Scientific Big Data for Advanced Manufacturing TechnologyGuizhou Education UniversityGuiyang 550018China

A minimum-modified Debye-Hückel(DH)theory for electrolytes with size asymmetry is ***-pared with the conventional DH theory,the minimum-modified DH theory only introduces an extra surface charge density to capture the electrostatic effect of the size asymmetry of the electrolytes and hence facilitates a boundary element method for electrostatic potential *** theory can distinguish the electrostat-ic energies and excess chemical potentials of ions with the same sizes but opposite charges,and is applied to a binary primitive electrolyte solution with moderate electrostatic *** with the hyper-netted chain theory,the validity of this modified DH theory demonstrates significant improvement over the conventional DH theory.

关键词： Electrolyte solution Size-asymmetry Debye-Hückel theory Electrostatic ener-gy chemical potential

Goos–H?nchen and Imbert–Fedorov shifts in tilted Weyl semimetals

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Chinese Physics B 2022年第7期31卷 272-283页

作者： Shuo-Qing Liu Yi-Fei Song Ting Wan You-Gang Ke Zhao-Ming Luo Key Laboratory of Hunan Province on Information Photonics and Freespace Optical Communications School of Information Science and EngineeringHunan Institute of Science and TechnologyYueyang 414006China School of Physics and Chemistry Hunan First Normal UniversityChangsha 410205China

We establish the beam models of Goos–H?nchen(GH)and Imbert–Fedorov(IF)effects in tilted Weyl semimetals(WSMs),and systematically study the influences of Weyl cone tilting and chemical potential on the GH and IF shifts at a certain photon energy 1.96 *** is found that the GH and IF shifts in tilted type-Ⅰand type-ⅡWSMs are both almost symmetric about the Weyl cone ***,the GH and IF shifts in type-I WSMs almost do not change with the tilt degree of Weyl cones,while those in type-ⅡWSMs are extremely dependent on tilt *** trends are mainly due to the nearly symmetric distribution of WSMs conductivities,where the conductivities keep stable in type-I WSMs and gradually decrease with tilt degree in type-II *** adjusting the chemical potential,the boundary between type-I and type-II WSMs widens,and the dependence of the beam shifts on the tilt degree can be ***,by extending the relevant discussions to a wider frequency band,the peak fluctuation of GH shifts and the decrease of IF shifts occur gradually as the frequency increases,and the performance of beam shifts at photon energy 1.96 eV is equally suitable for other photon *** above findings provide a new reference for revisiting the beam shifts in tilted WSMs and determining the types of WSMs.

关键词： Goos–Hanchen shift Imbert–Fedorov shift Weyl cone tilting chemical potential

New Approach to Deep Miniaturization: A Way to Overcoming Moore’s Law

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Journal of Modern Physics 2021年第3期12卷 167-178页

作者： Maria K. Koleva Institute of Catalysis Bulgarian Academy of Sciences Sofia Bulgaria

The matter about some far-going consequences commencing from the replacement of one of the basic principles of the traditional physics that is the principle of locality, with the recently put forward principle of boundedness is considered. It is proven that the thermodynamic theory which is explicitly grounded on the principle of locality, suffers inherent contradiction which roots lay down to the principle of locality. The way to overcome it goes via the replacement of the principle of locality with the recently put forward by the author principle of boundedness. In turn, the latter gives rise not only to a fundamentally novel notion for a number of ideas but also it yields replacement of the proportionality between the software and hardware components with a new non-extensive approach to the matter. It is proven that the famous Moore’s law stands in new reading both in its support and the way to overcome its limitations. Apart from its role for the technical applications, the present considerations stand also as a methodological example how the role of the basics of any theory affects practical rules such as the Moore’s law.

关键词： Principle of Locality Principle of Boundedness Moore’s Law Decomposition Theorem chemical potential Semantic Intelligence

Motoyosi Sugita—A “Widely Unknown” Japanese Thermodynamicist Who Explored the 4th Law of Thermodynamics for Creation of the Theory of Life

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Open Journal of Biophysics 2016年第4期6卷 125-232页

作者： Kazumoto Iguchi Kazumoto Iguchi Research Laboratory (KIRL) Tokushima Japan

The purpose of this paper is to introduce to you, the Western people, nowadays a “widely unknown” Japanese thermodynamicist by the name of Motoyosi Sugita and his study on the thermodynamics of transient phenomena and his theory of life. This is because although he was one of the top theoretical physicists in Japan before, during and after WWII and after WWII he promoted the establishment of the biophysical society of Japan as one of the founding members, he himself and his studies themselves have seemed to be totally forgotten nowadays in spite that his study was absolutely important for the study of life. Therefore, in this paper I would like to present what kind of person he was and what he studied in physics as a review on the physics work of Motoyosi Sugita for the first time. I will follow his past studies to introduce his ideas in theoretical physics as well as in biophysics as follows: He proposed the bright ideas such as the quasi-static change in the broad sense, the virtual heat, and the field of chemical potential etc. in order to establish his own theory of thermodynamics of transient phenomena, as the generalization of the Onsager-Prigogine’s theory of the irreversible processes. By the concept of the field of chemical potential that acquired the nonlinear transport, he was seemingly successful to exceed and go beyond the scope of Onsager and Prigogine. Once he established his thermodynamics, he explored the existence of the 4th law of thermodynamics for the foundation of theory of life. He applied it to broad categories of transient phenomena including life and life being such as the theory of metabolism. He regarded the 4th law of thermodynamics as the maximum principle in transient phenomena. He tried to prove it all life long. Since I have recently found that his maximum principle can be included in more general maximum principle, which was known as the Pontryagin’s maximum principle in the theory of optimal control, I would like to explain such th

关键词： Unknown Japanese Thermodynamicist Motoyosi Sugita Thermodynamics of Transient Phenomena Virtual Heat Broad Quasi-Static Change chemical potential Field of chemical potential Diffusion Phenomena Number of Partition Dissipation Function Onsager’s Theory of Irreversible Processes Prigogine’s Least Production of Entropy 4th Law of Thermodynamics Maximum Principle Pontryagin’s Maximum Principle Bellman’s Optimality Principle Theory of Metabolism Theory of Life Cybernetics

Density Functional Theory Study of Exohedral Carbon Atoms Effect on Electrophilicity of Nicotine: Comparative Analysis

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Computational Chemistry 2016年第1期4卷 17-31页

作者： S. Dheivamalar L. Sugi K. Ambigai Department of Physics Government Arts College for Women (Autonomous) Pudukkottai India Department of Physics Bharath College of Science & Management Thanjavur India

In recent years, many studies have been done on the structure of fullerene as medicine nano carrier compounds. On this basis, Quantum mechanical calculations have been done and the effect of the nicotine compound in structure of Nanofullerene C12 was studied. Density Functional Theory (DFT) can be used to calculate an accurate electronic structure, HOMO and LUMO energies, Mulliken charge of atoms, energetic orbital levels, global hardness, chemical potential and electrophilicity of systems, and finally chemical, physical properties of fullerene and fullerene derivatives. Theoretical calculations such as Natural Bond Orbital (NBO) are very important to understand the pathways of electron transfer in assemblies. Consequently, the obtained results showed that energy orbital levels decreased considerably by linking structure of Nanofullerene to the structure of Nicotine. The intramolecular interaction is formed by the orbital overlap between C-C, C-N, C-H anti bonding orbital which results an intermolecular charge transfer (ICT) from a Lewis valence orbital (donor), with a decreasing of its occupancy, to a non-Lewis orbital (acceptor). The interacting effect is also discussed in terms of the change in the C-C bond lengths, net atomic charge distribution, total dipole moment. The obtained results indicate that the C-C distances are enlarged interaction. Furthermore, there is a complete change in the net atomic charge distribution, as well as a corresponding increase in the value of the total dipole moment. On the basis of fully optimized ground-state structure, TDDFT//B3LYP/3-21G* calculations have been performed to determine the low-lying excited states of nanofullerene interacting with nicotine (NFN).

关键词： DFT Electrophilicity chemical Hardness chemical potential Nano Fullerene Nicotine

Compressed H₃S: Fits to the Empirical H_c2(T) Data and a Discussion of the Meissner Effect

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World Journal of Condensed Matter Physics 2023年第4期13卷 111-127页

作者： Gulshan Prakash Malik Vijaya Shankar Varma Gurugram India Theory Group School of Environmental Sciences Jawaharlal Nehru University New Delhi India Department of Physics and Astrophysics University of Delhi Delhi India

Based on μ-, T- and H-dependent pairing and number equations and the premise that μ(T) is predominantly the cause of the variation of the upper critical field Hc2(T), where μ, T and H denote the chemical potential, temperature and the applied field, respectively, we provide in this paper fits to the empirical Hc2(T) data of H3S reported by Mozaffari, et al. (2019) and deal with the issue of whether or not H3S exhibits the Meissner effect. Employing a variant of the template given by Dogan and Cohen (2021), we examine in detail the results of Hirsch and Marsiglio (2022) who have claimed that H3S does not exhibit the Meissner effect and Minkov, et al. (2023) who have claimed that it does. We are thus led to suggest that monitoring the chemical potential (equivalently, the number density of Cooper pairs Ns at T = Tc) should shed new light on the issue being addressed.

关键词： Compressed H3S Upper and Lower Critical Fields chemical potential Generalized Pairing and Number Equations Coherence Length Penetration Depth Meissner Effect