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We consider the interactions of two identical, orthogonally polarized vector solitons in a nonlinear optical fiber with two polarization directions, described by a coupled pair of nonlinear Schroedinger equations. We study a low-dimensional…

斑图形成与孤子 · 物理学 2009-11-11 Roy H. Goodman , Richard Haberman

The nonlocal electrodynamics of uniformly rotating systems is presented and its predictions are discussed. In this case, due to paucity of experimental data, the nonlocal theory cannot be directly confronted with observation at present. The…

高能物理 - 理论 · 物理学 2010-11-19 Bahram Mashhoon

We present an extension of the tunneling theory for scanning tunneling microcopy (STM) to include different types of vibrational-electronic couplings responsible for inelastic contributions to the tunnel current in the strong-coupling…

Solitons which have the form of a vortex-antivortex pair have recently been found in the Landau-Lifshitz equation which is the standard model for the ferromagnet. We simulate numerically head-on collisions of two vortex-antivortex pairs and…

强关联电子 · 物理学 2009-10-31 S. Komineas

Direct analytical and numerical calculation show that two-electron atomic configuration can be unstable with respect to a static or dynamic shift of the electron shells. This enables to develop a so called non-rigid shell model for a…

强关联电子 · 物理学 2007-05-23 Yu. D. Panov , A. S. Moskvin

We introduce two tractable analytical models to describe dynamic effects at resonant light scattering by subwavelength particles. One of them is based on generalization of the temporal coupled-mode theory, and the other employs the normal…

光学 · 物理学 2021-09-29 Michael I. Tribelsky , Andrey E. Miroshnichenko

We propose a one-channel, simple model to describe the dynamics of ultracold dipolar molecules around a F\"orster resonance. Slightly above a specific electric field, a collisional shielding can take place, suppressing the molecular losses…

量子气体 · 物理学 2024-06-21 Lucas Lassablière , Goulven Quéméner

The nonperturbative nature of nucleon-nucleon interactions as a function of a momentum cutoff is studied using Weinberg eigenvalues as a diagnostic. This investigation extends an earlier study of the perturbative convergence of the Born…

核理论 · 物理学 2009-11-11 S. K. Bogner , R. J. Furnstahl , S. Ramanan , A. Schwenk

We present an analytical model to account for the inertial dynamics of a magnetic vortex. The model is based on a deformation of the core profile based on the D\"oring kinetic field, whereby the deformation amplitudes are promoted to…

介观与纳米尺度物理 · 物理学 2021-02-24 Myoung-Woo Yoo , Francesca Mineo , Joo-Von Kim

Photonic systems with time-varying modulations have attracted considerable attention as they allow for the design of non-reciprocal devices without the need for an external magnetic bias. Unlike time-invariant systems, such modulations…

We investigate the qualitative characteristics of a test particle attracted to an irregular elongated body, modeled as a non-homogeneous straight segment with a variable linear density. By deriving the potential function in closed form, we…

动力系统 · 数学 2024-11-22 E. Martínez , J. Vidarte , J. L. Zapata

The evolution of the atomic structures of the combinatorial library of Sm-substituted thin film BiFeO3 along the phase transition boundary from the ferroelectric rhombohedral phase to the non-ferroelectric orthorhombic phase is explored…

数据分析、统计与概率 · 物理学 2021-03-03 Chris Nelson , Anna N. Morozovska , Maxim A. Ziatdinov , Eugene A. Eliseev , Xiaohang Zhang , Ichiro Takeuchi , Sergei V. Kalinin

Molecular dipole moments of analytic density-functional theory are investigated. The effect of element-dependent exchange potentials on these moments are examined by comparison with conventional quantum-chemical methods and experiment for…

其他凝聚态物理 · 物理学 2009-11-11 Brett I. Dunlap , Shashi P. Karna , Rajendra R. Zope , ;

The interplay between vibrational modes and Kondo physics is a fundamental aspect of transport properties of correlated molecular conductors. We present theoretical results for a single molecule in the Kondo regime connected to left and…

介观与纳米尺度物理 · 物理学 2009-05-18 Luis G. Dias da Silva , Elbio Dagotto

In a recent article (P.Wochner et al., PNAS (2009)) x-ray scattering intensity correlations around a ring, in the speckle diffraction pattern of a colloidal glass, were shown to display a remarkable ~ cos(n $\phi$) dependence on the angular…

无序系统与神经网络 · 物理学 2011-07-08 M. Altarelli , R. P. Kurta , I. A. Vartanyants

A systematic study of the leading isotropic van der Waals coefficients for the alkali-metal atom + molecule and molecule + molecule systems is presented. Dipole moments and static and dynamic dipole polarizabilities are calculated employing…

原子物理 · 物理学 2013-02-22 P. S. Zuchowski , M. Kosicki , M. Kodrycka , P. Soldan

Here we present a theoretical analysis of inelastic effects on thermoelectric properties of molecular-scale junction in both linear and nonlinear response regimes. Considered device is composed of molecular quantum dot (with discrete energy…

介观与纳米尺度物理 · 物理学 2015-06-25 Kamil Walczak

In binary metallic systems like the Pd--Er alloys charged with hydrogen the observed structure evolution exhibits complex dynamics. It is characterized by non-monotonic time variations in an Er-rich fraction respect with an Er-poor fraction…

材料科学 · 物理学 2007-05-23 A. A. Katsnelson , A. Yu. Lavrenov , I. A. Lubashevsky

We study the breakdown of diffusive hydrodynamics in holographic systems dual to neutral dilatonic black holes with extremal near horizon geometries conformal to AdS$_2\times\,$R$^2$. We find that at low temperatures by tuning the effective…

高能物理 - 理论 · 物理学 2022-01-28 Yan Liu , Xin-Meng Wu

We study the structure and the dynamics in the formation of irreversible gels by means of molecular dynamics simulation of a model system where the gelation transition is due to the random percolation of permanent bonds between neighboring…

软凝聚态物质 · 物理学 2015-06-25 T. Abete , A. de Candia , E. Del Gado , A. Fierro , A. Coniglio