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We discuss the dynamics of zonal (or unidirectional) jets for barotropic flows forced by Gaussian stochastic fields with white in time correlation functions. This problem contains the stochastic dynamics of 2D Navier-Stokes equation as a…

流体动力学 · 物理学 2015-06-15 Freddy Bouchet , Cesare Nardini , Tomás Tangarife

We characterize the properties of a new form of magneto-optical trap (MOT) that relies on non-equilibrium population dynamics associated with narrow-linewidth optical transitions. We demonstrate this mechanism using the 7.5 kHz linewidth…

原子物理 · 物理学 2018-06-05 Juan A. Muniz , Matthew A. Norcia , Julia R. K. Cline , James K. Thompson

In the study of evolution equations, the method of adiabatic approximation is an essential tool to reduce an infinite-dimensional dynamical system to a simpler, possibly finite-dimensional one. In this paper, we formulate a generic scheme…

偏微分方程分析 · 数学 2022-03-09 Jingxuan Zhang

We analyze the dynamics of dissipation and relaxation in the unbroken and broken symmetry phases of scalar theory in the nonlinear regime for large initial energy densities, and after linear unstabilities (parametric or spinodal) are…

高能物理 - 唯象学 · 物理学 2009-10-30 D. Boyanovsky , C. Destri , H. J. de Vega , R. Holman , J. F. J. Salgado

The physics of critical phenomena in a many-body system far from thermal equilibrium is an interesting and important issue to be addressed both experimentally and theoretically. The trapped cold atoms have been actively used as a clean and…

原子物理 · 物理学 2017-09-13 Geol Moon , Myoung-Sun Heo , Yonghee Kim , Heung-Ryoul Noh , Wonho Jhe

We consider the problem of learning the dynamics of autonomous linear systems (i.e., systems that are not affected by external control inputs) from observations of multiple trajectories of those systems, with finite sample guarantees.…

系统与控制 · 电气工程与系统科学 2022-09-27 Lei Xin , George Chiu , Shreyas Sundaram

M. Kruskal showed that each nearly-periodic dynamical system admits a formal $U(1)$ symmetry, generated by the so-called roto-rate. We prove that such systems also admit nearly-invariant manifolds of each order, near which rapid…

动力系统 · 数学 2021-09-29 J. W. Burby , E. Hirvijoki

We derive the non-adiabatic ring polymer molecular dynamics (RPMD) approach in the phase space of the SU(N) Lie Group. This method, which we refer to as the spin mapping non-adiabatic RPMD (SM-NRPMD), is based on the spin-mapping formalism…

化学物理 · 物理学 2023-02-15 Duncan Bossion , Sutirtha N. Chowdhury , Pengfei Huo

The dynamics of a periodically driven system whose time evolution is governed by the Schr\"{o}dinger equation with non-Hermitian Hamiltonians can be perfectly stable. This finding was only obtained very recently and will be enhanced by many…

量子物理 · 物理学 2019-01-16 Jiangbin Gong , Qing-hai Wang

A method is proposed to drive an ultrafast non-adiabatic dynamics of an ultracold gas trapped in a box potential. The resulting state is free from spurious excitations associated with the breakdown of adiabaticity, and preserves the quantum…

量子气体 · 物理学 2014-12-02 A. del Campo , M. G. Boshier

The dynamics of non-autonomous bright matter-wave solitons in Rabi coupled binary Bose-Einstein condensates is explored. By performing a unitary and similarity/lens-type transformation, we reduce the non-autonomous Gross-Pitaevskii equation…

斑图形成与孤子 · 物理学 2017-05-09 T. Kanna , R. Babu Mareeswaran , Franz G. Mertens

In this work, a mathematical model of self-oscillatory dynamics of the metabolism in a cell is studied. The full phase-parametric characteristics of variations of the form of attractors depending on the dissipation of a kinetic membrane…

适应与自组织系统 · 物理学 2018-01-17 V. I. Grytsay , I. V. Musatenko

We investigate the dynamics close to a homogeneous stationary state of Vlasov equation in one dimension, in presence of a small dissipation modeled by a Fokker-Planck operator. When the stationary state is stable, we show the stochastic…

数学物理 · 物理学 2018-09-26 Julien Barré , David Métivier

Nonadiabatic removal of an external transverse magnetic field provides a phase-selective mechanism for controlling betatron oscillations in laser wakefield accelerators. When the field is switched off on a timescale shorter than the…

等离子体物理 · 物理学 2026-04-09 R. S. Anandu , B. Ramakrishna

Tight bosonic analogs of free-fermionic symmetry-protected topological phases, and their associated edge-localized excitations, have long evaded the grasp of condensed-matter and AMO physics. In this work, building on our initial…

量子物理 · 物理学 2024-01-17 Vincent P. Flynn , Emilio Cobanera , Lorenza Viola

We describe how to control the motion -- both speed and propagation direction -- of a nonlinear traveling wave in real time via soliton management with time-varying dispersion/diffusion and loss/gain terms. When carried out subject to…

斑图形成与孤子 · 物理学 2022-07-11 Robert A. Van Gorder

Several misprints and small mistakes were in the initial version. They have been corrected. Following the recent experimental realization of synthetic gauge magnetic forces, Jean Dalibard adressed the question whether the adiabatic ansatz…

偏微分方程分析 · 数学 2012-01-24 Amandine Aftalion , Francis Nier

This study proposes an effective theoretical framework for non-adiabatic parametric excitation in structured media, incorporating a nonlinear frequency regulator U as a stabilizing mechanism. We introduce the non-adiabaticity parameter as a…

介观与纳米尺度物理 · 物理学 2026-05-19 A. M. Tishin

The problem of the dynamical stability of anistropic systems is studied, by proposing a criterion in terms of the adiabatic local index $\gamma$. The result has general validity and can be applied to several physical situations.…

广义相对论与量子宇宙学 · 物理学 2019-02-14 Giuseppe Alberti , Marco Merafina

We here present a model of nonlinear dynamics of microtubules (MT) in the context of modified extended tanh-function (METHF) method. We rely on the ferroelectric model of MTs published earlier by Satari\'c et al [1] where the motion of MT…