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We develop a generalized Newton scheme IHNC for the construction of effective pair potentials for systems of interacting point-like particles.The construction is made in such a way that the distribution of the particles matches a given…

Numerical Analysis · Mathematics 2018-07-02 Fabrice Delbary , Martin Hanke , Dmitry Ivanizki

Superradiance and subradiance are collective effects that emerge from coherent interactions between quantum emitters. Due to their many-body nature, theoretical studies of extended samples with length larger than the atomic transition…

Quantum Physics · Physics 2022-12-02 Oriol Rubies-Bigorda , Susanne F. Yelin

New bispectral polynomials orthogonal on a quadratic bi-lattice are obtained from a truncation of Wilson polynomials. Recurrence relation and difference equation are provided. The recurrence coefficients can be encoded in a perturbed…

Classical Analysis and ODEs · Mathematics 2015-11-18 Jean-Michel Lemay , Luc Vinet , Alexei Zhedanov

By using combinatorics, we give a new proof for the recurrence relations of the characteristic polynomial coefficients, and then we obtain an explicit expression for the generic term of the coefficient sequence, which yields the trace…

High Energy Physics - Theory · Physics 2008-11-26 Hong-Hao Zhang , Wen-Bin Yan , Xue-Song Li

A novel derivation of quantum propagator of a system described by a general quadratic Lagrangian is presented in the framework of Heisenberg equations of motion. The general corresponding density matrix is obtained for a derived quantum…

Quantum Physics · Physics 2018-07-31 Fardin Kheirandish

In this paper we discuss the infinite-dimensional generalizations of the famous theorem of Berger-Wang (generalized Berger-Wang formulas) and give an operator-theoretic proof of I. Morris's theorem about coincidence of three essential joint…

Functional Analysis · Mathematics 2020-05-07 Edward Kissin , Victor S. Shulman , Yurii Turovskii

Varchenko defined the Varchenko matrix associated to any real hyperplane arrangement and computed its determinant. In this paper, we show that the Varchenko matrix of a hyperplane arrangement has a diagonal form if and only if it is…

Combinatorics · Mathematics 2018-02-08 Yibo Gao , YiYu Zhang

We perform a one-dimensional complexified quaternionic version of the Dirac equation based on $i$-complex geometry. The problem of the missing complex parameters in Quaternionic Quantum Mechanics with $i$-complex geometry is overcome by a…

High Energy Physics - Theory · Physics 2012-08-27 Stefano De Leo , Waldyr A. Rodrigues,

In this paper we prove an abstract KAM theorem for infinite dimensional Hamiltonians systems. This result extends previous works of S.B. Kuksin and J. P\"oschel and uses recent techniques of H. Eliasson and S.B. Kuksin. As an application we…

Analysis of PDEs · Mathematics 2015-05-18 Benoît Grébert , Laurent Thomann

These notes describe some links between the group $\mathrm{SL}_2(\mathbb{R})$, the Heisenberg group and hypercomplex numbers---complex, dual and double numbers. Relations between quantum and classical mechanics are clarified in this…

Mathematical Physics · Physics 2017-01-06 Vladimir V. Kisil

We consider one dimensional chains of interacting particles subjected to one dimensional almost-periodic media. We formulate and prove two KAM type theorems corresponding to both short-range and long-range interactions respectively. Both…

Dynamical Systems · Mathematics 2024-11-11 Yujia An , Rafael de la Llave , Xifeng Su , Donghua Wang , Dongyu Yao

We describe a linear homopolymer using a Grand Canonical ensemble formalism, a statistical representation that is very convenient for formal manipulations. We investigate the properties of a system where only next neighbor interactions and…

Statistical Mechanics · Physics 2009-11-11 S. Pasquali , J. K. Percus

We consider the application of Kramers theory to the microscopic calculation of rates of conformational transitions of macromolecules. The main difficulty in such an approach is to locate the transition state in a huge configuration space.…

Biomolecules · Quantitative Biology 2008-09-02 Marcello Sega , Pietro Faccioli , Francesco Pederiva , Henri Orland

Based on the reciprocity theorem, we put forward a generalized parametric space for an arbitrary transfer matrix with parity time (PT) symmetry. Through this space, one can extract complete information involving PT phases, reflectances,…

Optics · Physics 2021-09-15 Jeng Yi Lee , Pai-Yen Chen

A geometric framework for quantum statistical estimation is used to establish a series of higher order corrections to the Heisenberg uncertainty relations associated with pairs of canonically conjugate variables. These corrections can be…

Quantum Physics · Physics 2007-05-23 Dorje C. Brody , Lane P. Hughston

Generalizations and variations of the fundamental lemma by Willems et al. are an active topic of recent research. In this note, we explore and formalize the links between kernel regression and some known nonlinear extensions of the…

Systems and Control · Electrical Eng. & Systems 2024-09-16 Oleksii Molodchyk , Timm Faulwasser

Massive and massless vector particles, in the framework of generalized Weinberg-Tucker-Hammer equations, are considered in the Petiau-Duffin-Kemmer formalism. We obtain solutions of equations in the form of matrix-dyads. The Lagrangian is…

Mathematical Physics · Physics 2023-12-27 S. I. Kruglov

Recently, two different approaches were put forward to extend the supersymmetry method in random matrix theory from Gaussian ensembles to general rotation invariant ensembles. These approaches are the generalized Hubbard-Stratonovich…

Mathematical Physics · Physics 2009-06-17 Mario Kieburg , Hans-Jürgen Sommers , Thomas Guhr

Using the elementary axioms of special relativity and quantum mechanics we construct a wave equation which generalizes the Schrodinger equation. We also solve the general second and some higher order differential equations.

General Mathematics · Mathematics 2026-03-31 Nikolaos D. Bagis

The present work describes some extensions of an approach, originally developed by V.V. Yatsyk and the author, for the theoretical and numerical analysis of scattering and radiation effects on infinite plates with cubically polarized…

Mathematical Physics · Physics 2026-02-04 Lutz Angermann
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