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Related papers: Electrophilicity Equalization Principle

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A set of general physical principles is proposed as the structural basis for the theory of complex systems. First the concept of harmony is analyzed and its different aspects are uncovered. Then the concept of reflection is defined and…

Disordered Systems and Neural Networks · Physics 2007-05-23 D. B. Saakian

By working out the Bethe sum rule, a boundary condition that takes the form of a linear equality is derived for the fine structure observed in ionization edges present in electron energy-loss spectra. This condition is subsequently used as…

Materials Science · Physics 2024-11-08 Daen Jannis , Wouter Van den Broek , Zezhong Zhang , Sandra Van Aert , Jo Verbeeck

It is demonstrated that the second quantization which is the basis of quantum electrodynamics is introduced without sufficient grounds and even logically inconsistently although it yields extremely accurate predictions that are in excellent…

General Physics · Physics 2019-02-21 V. A. Golovko

An understanding of the precise nature of a chemical reactivity descriptor is of utmost interest to quantum chemists. In the present investigation an attempt has been made to analyze whether the electrophilicity index is a reliable…

Chemical Physics · Physics 2007-05-23 P. K. Chattaraj , U. Sarkar , M. Elango , R. Parthasarathi , V. Subramanian

The present work revisits the reduction of the nonlinear dynamics of an electromechanical system through a quasi-steady state hypothesis, discussing the fundamental aspects of this type of approach and clarifying some confusing points found…

We prove that the electron density function of a real physical system can be uniquely determined by its values on any finite subsystem. This establishes the existence of a rigorous density-functional theory for any open electronic system.…

Quantum Physics · Physics 2007-05-23 Xiao Zheng , Fan Wang , GuanHua Chen

It is shown here how the semiclassical theory of electrical susceptibility can be extended to the case in which both radiation and matter are quantized. This is done specifically for the cases of linear and second order susceptibilities.…

Quantum Physics · Physics 2018-06-01 Jairo David García , Boris A. Rodríguez

We give an outline of the anticipated physics program for a future electron ion collider. The status and prospects for construction of such a device are discussed.

High Energy Physics - Experiment · Physics 2016-10-28 Hugh E. Montgomery

Density functional theory (DFT) is an essential building block for modern theoretical physics, chemistry, and engineering, especially those concerning electronic properties. Through decades of development, various program packages for…

Materials Science · Physics 2022-11-21 Yusuke Nomura , Ryosuke Akashi

This article reviews recent developments in multiresolution analysis which make it a powerful tool for the systematic treatment of the multiple length-scales inherent in the electronic structure of matter. Although the article focuses on…

Materials Science · Physics 2009-10-31 T. A. Arias

An electronic quantity, the correlation strength, is defined as a necessary step for understanding the properties and trends in strongly correlated electronic materials. As a test case, this is applied to the different phases of elemental…

Strongly Correlated Electrons · Physics 2015-06-03 A. Svane , R. C. Albers , N. E. Christensen , M. van Schilfgaarde , A. N. Chantis , Jian-Xin Zhu

We present a method for electronic structure calculations that retains all of the advantages of real space and addresses the inherent inefficiency of a regular grid, which has equal precision everywhere. The computations are carried out on…

Condensed Matter · Physics 2009-10-28 Gil Zumbach , N. A. Modine , Efthimios Kaxiras

In this paper I bring the recent philosophical literature on theoretical equivalence to bear on dualities in physics. Focusing on electromagnetic duality, which is a simple example of S-duality in string theory, I will show that the duality…

History and Philosophy of Physics · Physics 2020-11-20 James Owen Weatherall

The work argues the principle of equivalence to be a theorem and not a principle (in a sense of an axiom). It contains a detailed analysis of the concepts of normal and inertial frame of reference. The equivalence principle is proved to be…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Bozhidar Z. Iliev

A new method to obtain a local parameterization for the exchange term in the many--body electronic problem is presented. The approach amounts to the introduction of a coordinate dependent electron effective mass. Numerical results for…

chem-ph · Physics 2009-10-28 Aurel Bulgac , Caio Lewenkopf , Vadim Mickrjukov

A physically motivated equation that determines the number of electrons of a molecule is proposed based on chemical common sense. It shows that all molecules are entangled in the number of electrons and results in the fundamental assumption…

Chemical Physics · Physics 2025-02-25 Jing Kong

Examples are given of the usefulness of electrons in interaction with nuclei for probing fundamental interactions and structure

Nuclear Theory · Physics 2009-09-25 Ernest M. Henley

In this paper we develop a generalized formalism for equilibrium thermodynamic systems when an information is shared between the system and the reservoir. The information results in a correction to the entropy of the system. This extension…

Statistical Mechanics · Physics 2013-05-10 Alessio Gagliardi , Aldo Di Carlo

Collider measurements on electroweak physics are summarised. Although the precision on some observables is very high, no deviation from the Standard Model of electroweak interactions is observed. The data allow to set stringent limits on…

High Energy Physics - Experiment · Physics 2008-11-26 Klaus Moenig

In this talk I describe a recently introduced field-theoretical approach that can be used as an alternative framework to study one-dimensional systems of highly correlated particles.

High Energy Physics - Theory · Physics 2009-10-30 Carlos M. Naon