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相关论文: Mori-Zwanzig Equations With Time-Dependent Liouvil…

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We develop a general theory for the existence, uniqueness, and higher regularity of solutions to wave-type equations on Lorentzian manifolds with timelike curves of cone-type singularities. These singularities may be of geometric type (cone…

偏微分方程分析 · 数学 2024-05-20 Peter Hintz

Maxwell's equations hold in inertial reference frames in uniform translational motion relative to one another. In conjunction with the Lorentz coordinate transformation equations, the transformation equations for the electric and magnetic…

综合物理 · 物理学 2007-05-23 D. M. Snyder

Maxwell's equations for the time-dependent electromagnetic field in a homogeneous chiral medium are reduced to a single quaternionic equation. Its fundamental solution satisfying the causality principle is obtained which allows us to solve…

数学物理 · 物理学 2009-11-10 Sergei M. Grudsky , Kira V. Khmelnytskaya , Vladislav V. Kravchenko

The Lewis-Zagier correspondence, which attaches period functions to Maa\ss\ wave forms, is extended to wave forms of higher order, which are higher invariants of the Fuchsian group in question. The key ingredient is an identification of…

数论 · 数学 2017-09-04 Anton Deitmar

The time-independent Schroedinger and Klein-Gordon equations - as well as any other Helmholtz-like equation - were recently shown to be associated with exact sets of ray-trajectories (coupled by a "Wave Potential" function encoded in their…

量子物理 · 物理学 2015-01-14 Adriano Orefice , Raffaele Giovanelli , Domenico Ditto

This second part deals with applications of a general method to describe the quantum time evolution determined by a Schroedinger equation with time-dependent Hamiltonian. A new aspect of our approach is that we find all solutions starting…

数学物理 · 物理学 2008-05-30 Maciej Kuna , Jan Naudts

Within a Lagrangian formalism we derive the time-dependent Gutzwiller approximation for general multi-band Hubbard models. Our approach explicitly incorporates the coupling between time-dependent variational parameters and a time-dependent…

强关联电子 · 物理学 2015-06-15 J. Bünemann , M. Capone , J. Lorenzana , G. Seibold

We propose and explore a scheme that leads to an infinite series of time- dependent Dyson maps which associate different Hermitian Hamiltonians to a uniquely specified time-dependent non-Hermitian Hamiltonian. We identify the underlying…

量子物理 · 物理学 2021-11-05 Andreas Fring , Rebecca Tenney

We analyze the time-dependence of N-level systems under the Rotating Wave Approximation and dipole selection rules. Such systems can be solved straightforwardly if the Hamiltonian can be transformed into a time-independent form. The…

量子物理 · 物理学 2025-10-21 Phoenix M. M. Paing , Daniel F. V. James

The analysis of the Helmholtz equation is shown to lead to an exact Hamiltonian system of equations describing in terms of ray trajectories a very wide family of wave-like phenomena (including diffraction and interference) going much beyond…

量子物理 · 物理学 2008-09-16 A. Orefice , R. Giovanelli , D. Ditto

We show that asymptotically locally Lifshitz space-times are holographically dual to field theories that exhibit Schroedinger invariance. This involves a complete identification of the sources, which describe torsional Newton-Cartan…

高能物理 - 理论 · 物理学 2015-06-11 Jelle Hartong , Elias Kiritsis , Niels A. Obers

This article deals with the study of electromagnetic waves equations and the Lorentz condition, as emergent properties of Maxwell's system in the context of systems theory. To do this, the wave equations and the Helmholtz equation are first…

经典物理 · 物理学 2020-10-28 Yudier Peña Pérez , Juan Bory Reyes

What forms will have an equations of modern physics if the dimensions of our time and space are fractional? The generalized equations enumerated by title are presented by help the generalized fractional derivatives of Riemann-Liouville.

广义相对论与量子宇宙学 · 物理学 2007-05-23 L. Ya. Kobelev

Admitting the validity of Lorentz transformations for the space as time coordinates of the same event we derive their differential form in order to underline the correct prerequisites for the application of time and length contraction or…

综合物理 · 物理学 2008-12-02 Stefan Popescu , Bernhard Rothenstein

The derivation of the time dependent Schr\"odinger equation with transversal and longitudinal relaxation, as the quantum mechanical analog of the classical Landau-Lifshitz-Bloch equation, has been described. Starting from the classical…

介观与纳米尺度物理 · 物理学 2016-08-24 Robert Wieser

We use time-independent canonical transformation methods to discuss the energy eigenfunctions for the simple linear potential, pedagogically setting the stage for some field theory calculations to follow. We then discuss the Schr\"odinger…

高能物理 - 理论 · 物理学 2016-09-06 T. L. Curtright , G. I. Ghandour

This report aims at establishing a theoretical framework for dealing with the reconstruction problem of a small acoustic inclusion. The objective is to introduce the new concept of time-dependent polarization tensors for the Helmholtz…

偏微分方程分析 · 数学 2020-06-23 Lorenzo Baldassari

We elaborate further on the metric representation that is obtained by transferring the time-dependence from a Hermitian Hamiltonian to the metric operator in a related non-Hermitian system. We provide further insight into the procedure on…

量子物理 · 物理学 2018-02-16 Andreas Fring , Thomas Frith

We derive a time-dependent density functional theory appropriate for calculating the near-edge X-ray absorption spectrum in molecules and condensed matter. The basic assumption is to increase the space of many-body wave functions from one…

强关联电子 · 物理学 2015-06-16 G. F. Bertsch , A. Lee

We demonstrate the control of solitary wave dynamics of modified Kortweg-de Vries (MKdV) equation through the temporal variations of the distributed coefficients. This is explicated through exact cnoidal wave and localized soliton solutions…

可精确求解与可积系统 · 物理学 2009-11-11 Kallol Pradhan , Prasanta K. Panigrahi