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We explore the effects arising due to the coupling of the center of mass and relative motion of two charged particles confined on an inhomogeneous helix with a locally modified radius. It is first proven that a separation of the center of…

经典物理 · 物理学 2015-06-03 A. V. Zampetaki , J. Stockhofe , S. Krönke , P. Schmelcher

We discuss the relevance of chaotic scattering in heavy--ion reactions at energies around the Coulomb barrier. A model in two and three dimensions which takes into account rotational degrees of freedom is discussed both classically and…

核理论 · 物理学 2009-10-22 M. Baldo , E. G. Lanza , A. Rapisarda

We study by means of time-dependent numerical simulations the behavior of the entanglement stemming from the Coulomb scattering between two charged particles subject to a pulse of sinusoidal potential. We show that the splitting of the…

量子物理 · 物理学 2009-02-04 Fabrizio Buscemi , Paolo Bordone , Andrea Bertoni

Melting of two dimensional (2D) clusters of classical particles is studied using Brownian dynamics and Langevin molecular dynamics simulations. The particles are confined by a circular hard wall or a parabolic external potential and…

介观与纳米尺度物理 · 物理学 2009-10-31 I. V. Schweigert , V. A. Schweigert , F. M. Peeters

A review is given on the studies of formation of light clusters and heavier fragments in heavy-ion collisions at incident energies from several tens of MeV/nucleon to several hundred MeV/nucleon, focusing on dynamical aspects and on…

核理论 · 物理学 2019-03-05 Akira Ono

We report on signatures of classical chaos in ultracold collisions between a trapped ion and a free atom. Using numerical simulations, we show that the scattering dynamics can be highly sensitive to initial conditions for various mass…

原子物理 · 物理学 2024-02-01 Meirav Pinkas , Jonathan Wengrowicz , Nitzan Akerman , Roee Ozeri

We study the classical dynamics of a Paul-trapped ion in a low-density bath of atoms above 1 $\mu\textrm{K}$. We find that lower energy collisions with more massive atoms, especially at energies less than the initial micromotion heating,…

原子物理 · 物理学 2025-12-29 Saajid Chowdhury , Jesús Pérez Ríos

We explore the effective long-range interaction of charged particles confined to a curved low-dimensional manifold using the example of a helical geometry. Opposite to the Coulomb interaction in free space the confined particles experience…

原子物理 · 物理学 2015-05-28 Peter Schmelcher

A phenomenological optical potential is generalized to include the Coulomb and nuclear interactions caused by the dynamical deformation of its surface. In the high-energy approach analytical expressions for elastic and inelastic scattering…

核理论 · 物理学 2009-11-11 V. K. Lukyanov , Z. Metawei , E. V. Zemlyanaya

We provide a statistical and correlational analysis of the spatial and energetic properties of equilibrium configurations of a few-body system of two to eight equally charged classical particles that are confined on a one-dimensional…

原子物理 · 物理学 2025-12-02 J. M. Dörre , F. K. Diakonos , P. Schmelcher

The inelastic scattering of electrons on weakly-bound nuclei is studied with a simple model based on the long range behavior of the bound state wavefunction and on the effective-range expansion for the continuum wavefunctions. Three…

核理论 · 物理学 2009-11-11 C. A. Bertulani

The trajectory of motion of a scattering electron in the Coulomb potential from the wave function of the Schroedinger equation is presented in two ways, spherical polar coordinates and Temple coordinates, and is compared with each other and…

量子物理 · 物理学 2014-08-04 Yoshio Nishiyama , Fumiaki Tajima

We consider crystal formation of particles with dipole-dipole interactions that are confined to move in a one-dimensional helical geometry with their dipole moments oriented along the symmetry axis of the confining helix. The stable…

量子气体 · 物理学 2014-08-12 J. K. Pedersen , D. V. Fedorov , A. S. Jensen , N. T. Zinner

Fragmentation of highly charged molecular ions or clusters consisting of more than two atoms can proceed in an onestep synchronous manner where all bonds break simultaneously or sequentially by emitting one ion after the other. We separated…

We study the problem of two interacting particles in the classical Harper model in the regime when one-particle motion is absolutely bounded inside one cell of periodic potential. The interaction between particles breaks integrability of…

量子气体 · 物理学 2016-06-30 D. L. Shepelyansky

Selected results of a classical simulation of N bodies in strong interaction are presented. The static properties of such classical systems are qualitatively similar to the known properties of atomic nuclei. The simulations of collisions…

核理论 · 物理学 2009-11-07 D. Cussol

The Coulomb logarithm often enters various plasma models and simulation methods for computing the transport and relaxation properties of plasmas. Traditionally, a classical pair collision picture was used to calculate the Coulomb logarithm…

等离子体物理 · 物理学 2024-08-20 S. K. Kodanova , T. S. Ramazanov , M. K. Issanova

The paper presents a theoretical work on the dynamics of Coulomb explosion for spherical nanoplasmas composed by two different ion species. Particular attention has been dedicated to study the energy spectra of the ions with the larger…

等离子体物理 · 物理学 2016-03-02 E. Boella , B. Peiretti Paradisi , A. D'Angola , G. Coppa , L. O. Silva

We explore the non-equilibrium dissipative dynamics of a system of identical charged particles trapped on a closed helix. The particles are subject to an external force accelerating them along the underlying structure. The effective…

软凝聚态物质 · 物理学 2017-02-17 A. V. Zampetaki , J. Stockhofe , P. Schmelcher

We investigate the behaviour of a system of particles with the different character of interaction. The approach makes it possible to describe systems of interacting particles by statistical methods taking into account a spatial…

凝聚态物理 · 物理学 2007-05-23 Volodymyr Krasnoholovets , Bohdan Lev
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