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The possible observations of Trojan-like extrasolar planets stimulate the deeper understanding of the stability behaviour of the co-orbital resonant motion. By using Hill's equations and the energy-rate method an analysis of the stability…

地球与行星天体物理 · 物理学 2015-06-15 Tamas Kovacs

We review the orbital stability of the planar circular restricted three-body problem, in the case of massless particles initially located between both massive bodies. We present new estimates of the resonance overlap criterion and the Hill…

地球与行星天体物理 · 物理学 2015-09-16 X. S. Ramos , J. A. Correa-Otto , C. Beaugé

An adequate characterization of the dynamics of Hamiltonian systems at physically relevant scales has been largely lacking. Here we investigate this fundamental problem and we show that the finite-scale Hamiltonian dynamics is governed by…

混沌动力学 · 物理学 2007-05-23 Adilson E. Motter , Alessandro P. S. de Moura , Celso Grebogi , Holger Kantz

Quasi-integrable Hamiltonian systems are of great interest in many research fields of physics and mathematics. In these systems, the phase space has regular and chaotic trajectories. These trajectories depend in part on the magnitude of…

等离子体物理 · 物理学 2014-04-14 Vilarbo da Silva , Alexsandro M. Carvalho

We study the time evolution of the amount of entanglement generated by one dimensional spin-1/2 Ising-type Hamiltonians composed of many-body interactions. We investigate sets of states randomly selected during the time evolution generated…

量子物理 · 物理学 2011-11-23 Yoshifumi Nakata , Mio Murao

The problem of the effect of two-frequency quasi-periodic perturbations on systems close to arbitrary nonlinear two-dimensional Hamiltonian ones is studied in the case when the corresponding perturbed autonomous systems have a double limit…

动力系统 · 数学 2020-11-24 O. S. Kostromina

We study how conservation laws shape the spreading of quantum coherence in many-body dynamics. Focusing on $U(1)$-symmetric random circuits, charge-and-dipole conserving circuits, as well as ergodic Hamiltonian dynamics, we probe coherences…

量子物理 · 物理学 2026-04-28 Sreemayee Aditya , Emanuele Tirrito , Piotr Sierant , Xhek Turkeshi

We discuss renormalization of the non-relativistic three-body problem with short-range forces. The problem is non-perturbative at momenta of the order of the inverse of the two-body scattering length. An infinite number of graphs must be…

核理论 · 物理学 2009-10-31 P. F. Bedaque , H. -W. Hammer , U. van Kolck

Triadic relationships are accepted to play a key role in the dynamics of social and political networks. Building on insights gleaned from balance theory in social network studies and from Boltzmann-Gibbs statistical physics, we propose a…

Given a quantum many-body system and the expectation-value dynamics of some operator, we study how this reference dynamics is altered due to a perturbation of the system's Hamiltonian. Based on projection operator techniques, we unveil that…

We study the influence of relativity on the chaotic properties and dynamical outcomes of an unstable triple system; the Pythagorean three-body problem. To this end, we extend the Brutus N-body code to include Post-Newtonian pairwise terms…

天体物理仪器与方法 · 物理学 2021-10-27 Tjarda C. N. Boekholt , Arend Moerman , Simon F. Portegies Zwart

It is shown that appearance of inertial range of scales, adjacent to distributed chaos range, results in adiabatic invariance of an energy correlation integral for isotropic homogeneous turbulence and for buoyancy driven turbulence (with…

流体动力学 · 物理学 2016-11-29 A. Bershadskii

Non-hermitian systems have gained a lot of interest in recent years. However, notions of chaos and localization in such systems have not reached the same level of maturity as in the Hermitian systems. Here, we consider non-hermitian…

无序系统与神经网络 · 物理学 2022-10-19 Soumi Ghosh , Sparsh Gupta , Manas Kulkarni

Many-body localized phases retain memory of their initial conditions in disordered interacting systems with unitary dynamics. The stability of the localized phase due to the breakdown of unitarity is of relevance to experiment in the…

无序系统与神经网络 · 物理学 2024-03-19 József Mák , M. J. Bhaseen , Arijeet Pal

Normal forms of Hamiltonian are very important to analyze the nonlinear stability of a dynamical system in the vicinity of invariant objects. This paper presents the normalization of Hamiltonian and the analysis of nonlinear stability of…

混沌动力学 · 物理学 2019-06-12 Ram Kishor , M. Xavier James Raj , Bhola Ishwar

We investigate how the transition from integrability to nonintegrability occurs by changing the parameters of the Hamiltonian of a Heisenberg spin-1/2 chain with defects. Randomly distributed defects may lead to quantum chaos. A similar…

凝聚态物理 · 物理学 2009-11-10 L. F. santos

We rigorously show that a local spin system giving rise to a slow Hamiltonian dynamics is stable against generic, even time-dependent, local perturbations. The sum of these perturbations can cover a significant amount of the system's size.…

量子物理 · 物理学 2024-11-12 Daniele Toniolo , Sougato Bose

Systematic odd-even binding energy differences in finite metallic particles are usually attributed to mean-field orbital energy effects or to a coherent pairing interaction. We show analytically and numerically that a purely random two-body…

介观与纳米尺度物理 · 物理学 2009-08-14 Thomas Papenbrock , Lev Kaplan , George F. Bertsch

The propagation of an initially localized perturbation via an interacting many-particle Hamiltonian dynamics is investigated. We argue that the propagation of the perturbation can be captured by the use of a continuous-time random walk…

统计力学 · 物理学 2012-09-11 V. Zaburdaev , S. Denisov , P. Hanggi

The Hamiltonian used in classical analyses of von Zeipel-Lidov-Kozai or ZLK oscillations in hierarchical triple systems is based on the quadrupole potential from a distant body on a fixed orbit, averaged over the orbits of both the inner…

地球与行星天体物理 · 物理学 2023-04-19 Scott Tremaine