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Controlling single-electron states becomes increasingly important due to the wide-ranging advances in electron quantum optics. Single-electron control enables coherent manipulation of individual electrons and the ability to exploit the wave…

量子物理 · 物理学 2023-11-14 Mauro Ballicchia , Clemens Etl , Mihail Nedjalkov , Josef Weinbub

Inspired by a similar analysis for the vacuum conformal Einstein field equations by Paetz [Ann. H. Poincar\'e 16, 2059 (2015)], in this article we show how to construct a system of quasilinear wave equations for the geometric fields…

广义相对论与量子宇宙学 · 物理学 2019-07-16 Diego A. Carranza , Adem E. Hursit , Juan A. Valiente Kroon

When subjected to electro-mechanical loading, ferroelectrics see their polarization evolve through the nucleation and evolution of domains. Existing mesoscale phase-field models for ferroelectrics are typically based on a gradient-descent…

材料科学 · 物理学 2023-05-10 Laurent Guin , Dennis Kochmann

The Biot-Savart law is a well-known and powerful theoretical tool used to calculate magnetic fields due to currents in magnetostatics. We extend the range of applicability and the formal structure of the Biot-Savart law to electrostatics by…

经典物理 · 物理学 2009-11-06 Mario H. Oliveira , Jose A. Miranda

In this paper, we consider numerical approximation of an electrically conductive ferrofluid model, which consists of Navier-Stokes equations, magnetization equation, and magnetic induction equation. To solve this highly coupled, nonlinear,…

数值分析 · 数学 2025-04-02 Jialin Xie , Xiaodi Zhang

We study the microscopic dynamics of competing ordered phases in a two-dimensional correlated electron model, which is driven with a pulsed electric field of finite duration. In order to go beyond a mean-field treatment of the electronic…

强关联电子 · 物理学 2023-01-03 Alexander Osterkorn , Stefan Kehrein

In this work we give a comprehensive derivation of an exact and numerically feasible method to perform ab-initio calculations of quantum particles interacting with a quantized electromagnetic field. We present a hierachy of…

An approach to the quantum-classical mechanics of phase space dependent operators, which has been proposed recently, is remodeled as a formalism for wave fields. Such wave fields obey a system of coupled non-linear equations that can be…

量子物理 · 物理学 2007-05-23 Alessandro Sergi

Cavity electromagnonic system, which simultaneously consists of cavities for photons, magnons (quanta of spin waves), and acoustic phonons, provides an exciting platform to achieve coherent energy transduction among different physical…

介观与纳米尺度物理 · 物理学 2024-08-27 Shihao Zhuang , Yujie Zhu , Changchun Zhong , Liang Jiang , Xufeng Zhang , Jia-Mian Hu

The effective potential of composite fermion fields in three-dimensional Thirring model in curved spacetime is calculated in linear curvature approximation. The phase transition accompanied by the creation of non-zero chiral invariant…

高能物理 - 理论 · 物理学 2015-06-26 B. Geyer , Y. I. Shil'nov

A study of the d-dimensional classical Heisenberg ferromagnetic model in the presence of a magnetic field is performed within the two-time Green function's framework in classical statistical physics. We extend the well known quantum Callen…

统计力学 · 物理学 2015-06-03 L. S. Campana , A. Cavallo , L. De Cesare , U. Esposito , A. Naddeo

We investigate two models in non-commutative (NC) field theory by means of Monte Carlo simulations. Even if we start from the Euclidean lattice formulation, such simulations are only feasible after mapping the systems onto dimensionally…

高能物理 - 理论 · 物理学 2009-11-07 W. Bietenholz , F. Hofheinz , J. Nishimura

A quantization scheme for the phenomenological Maxwell theory of the full electromagnetic field in an inhomogeneous three-dimensional, dispersive and absorbing dielectric medium is developed. The classical Maxwell equations with spatially…

量子物理 · 物理学 2009-10-30 Ho Trung Dung , L. Knoell , D. -G. Welsch

In this article, it is pointed out that Faraday induction can be treated from an untraditional, particle-based point of view. The electromagnetic fields of Faraday induction can be calculated explicitly from approximate point-charge fields…

经典物理 · 物理学 2015-04-07 Timothy H. Boyer

Non-perturbative formulations of field theories are essential to capture intriguing physical phenomena, including confinement in QCD, spontaneous supersymmetry breaking, and dynamical compactification in superstrings. Lattice regularization…

高能物理 - 格点 · 物理学 2023-09-08 Arpith Kumar

This work aims at presenting a Discontinuous Galerkin (DG) formulation employing a spectral basis for two important models employed in cardiac electrophysiology, namely the monodomain and bidomain models. The use of DG methods is motivated…

We generalize the rotationally-invariant formulation of the slave-boson formalism to multiorbital models, with arbitrary interactions, crystal fields, and multiplet structure. This allows for the study of multiplet effects on the nature of…

强关联电子 · 物理学 2009-11-13 Frank Lechermann , Antoine Georges , Gabriel Kotliar , Olivier Parcollet

Quantum stochastic differential equations have been used to describe the dynamics of an atom interacting with the electromagnetic field via absorption/emission processes. Here, by using the full quantum stochastic Schroedinger equation…

量子物理 · 物理学 2009-10-31 Alberto Barchielli , Giancarlo Lupieri

We develop a phase-space electronic structure theory of molecules in magnetic fields. For a system of electrons in a magnetic field with vector potential $\bf{A}(\hat{\bf{r}})$, the usual Born-Oppenheimer Hamiltonian is the sum of the…

New string dynamics is formulated on the basis of the extended set of supergauge constraints including not only supergauge Virasoro conditions but also nilpotent supercurrent constraints . This approach arises from a natural generalization…

高能物理 - 理论 · 物理学 2007-05-23 V. A. Kudryavtsev
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