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The classical and quantum aspects of planar Coulomb interactions have been studied in detail. In the classical scenario, Action Angle Variables are introduced to handle relativistic corrections, in the scheme of time-independent…

高能物理 - 理论 · 物理学 2009-10-30 Subir Ghosh

The relation between classically chaotic dynamics and quantum localization is studied in a system that violates the assumptions of Kolmogorov-Arnold-Moser (KAM) theorem, namely, kicked rotor in a discontinuous potential barrier. We show…

混沌动力学 · 物理学 2016-07-22 Sanku Paul , Harinder Pal , M. S. Santhanam

The quantum resonances occurring with delta-kicked atoms when the kicking period is an integer multiple of the half-Talbot time are analyzed in detail. Exact results about the momentum distribution at exact resonance are established, both…

混沌动力学 · 物理学 2007-05-23 Sandro Wimberger , Italo Guarneri , Shmuel Fishman

For studying the dynamics of a two-level system coupled to a quantum oscillator we have presented an analytical approach, the transformed rotating-wave approximation, which takes into account the effect of the counter-rotating terms but…

量子物理 · 物理学 2015-05-13 Congjun Gan , Hang Zheng

The fragmentation of diatomic molecules under a stochastic force is investigated both classically and quantum mechanically, focussing on their dissociation probabilities. It is found that the quantum system is more robust than the classical…

原子物理 · 物理学 2009-11-11 Anatole Kenfack , Jan M Rost

A study is reported of the quantum scattering resonances of dissociating molecules using a semiclassical approach based on periodic-orbit theory. The dynamics takes place on a potential energy surface with an energy barrier separating two…

化学物理 · 物理学 2016-04-12 Pierre Gaspard

This work presents a selective review of results concerning the mathematical interface between the classical and quantum aspects encountered in problems such as the nuclear mean-field dynamics or quantum Brownian motion. It is shown that…

量子物理 · 物理学 2018-01-09 M. Grigorescu

It might be anticipated that there is statistical universality in the long-time classical dynamics of chaotic systems, corresponding to the universal correspondence of their quantum spectral statistics with random matrix models. We argue…

chao-dyn · 物理学 2007-05-23 M. Wilkinson , B. Mehlig

We study the transition between quantum and classical behavior of particles in a gravitational quantum well. We analyze how an increase in the particles mass turns the energy spectrum into a continuous one, from an experimental point of…

高能物理 - 唯象学 · 物理学 2011-08-04 O. Bertolami , J. G. Rosa

We compare the quantum and classical properties of the (Quantum) Isoperiodic Stable Structures -- (Q)ISSs -- which organize the parameter space of a paradigmatic dissipative ratchet model, i.e. the dissipative modified kicked rotator. We…

量子物理 · 物理学 2015-11-18 Gabriel G. Carlo , Alejandro M. F. Rivas , Maria E. Spina

We present mean energy measurements for the atom optics kicked rotor as the kicking period tends to zero. A narrow resonance is observed marked by quadratic energy growth, in parallel with a complete freezing of the energy absorption away…

量子物理 · 物理学 2009-11-11 Mark Sadgrove , Sandro Wimberger , Scott Parkins , Rainer Leonhardt

As an unusual type of anomalous diffusion behavior, superballistic transport is not well known but has been experimentally simulated recently. Quantum superballistic transport models to date are mainly based on connected sublattices which…

混沌动力学 · 物理学 2015-06-19 Qifang Zhao , Cord A. Muller , Jiangbin Gong

We give a partial answer to the question whether the Schrodinger equation can be derived from the Newtonian mechanics of a particle in a potential subject to a random force. We show that the fluctuations around the classical motion of a one…

量子物理 · 物理学 2021-02-24 Can Gokler

We investigate analytically and numerically the nonstationary circuit QED setup in which $N$ independent qubits interact with a single mode of the Electromagnetic field confined in a resonator. We consider the harmonic time modulation of…

量子物理 · 物理学 2016-12-21 E. L. S. Silva , A. V. Dodonov

We study the classical mechanics and dynamics of particles that retains some memory of quantum statistics. Our work builds on earlier work on the statistical mechanics and thermodynamics of such particles. Starting from the effective…

量子物理 · 物理学 2025-11-21 Varsha Subramanyan , T. H. Hansson , Smitha Vishveshwara

We investigate the difference between classical and quantum dynamics of coupled magnetic dipoles. We prove that in general the dynamics of the classical interaction Hamiltonian differs from the corresponding quantum model, regardless of the…

量子物理 · 物理学 2009-11-07 G. J. Milburn , R. Laflamme , B. C. Sanders , E. Knill

In the second part of this paper in micro canonical ensemble the new numerical approach for consideration of quantum dynamics and calculations of the average values of quantum operators and time correlation functions in the Wigner…

量子物理 · 物理学 2009-10-31 V. Filinov , Yu. Lozovik , A. Filinov , I. Zacharov , A. Oparin

We study the effects of short-time classical dynamics on the distribution of Coulomb blockade peak heights in a chaotic quantum dot. The location of one or both leads relative to the short unstable orbits, as well as relative to the…

混沌动力学 · 物理学 2009-08-14 L. Kaplan

We analyze the effects of a nonlinear cubic perturbation on the delta-Kicked Rotor. We consider two different models, in which the nonlinear term acts either in the position or in the momentum representation. We numerically investigate the…

混沌动力学 · 物理学 2007-05-23 Laura Rebuzzini , Sandro Wimberger , Roberto Artuso

Motivated by various systems in which quantum effects occur in classical backgrounds, we consider the dynamics of a classical particle as described by a coherent state that is coupled to a quantum bath via bi-quadratic interactions. We…

高能物理 - 理论 · 物理学 2018-02-06 Tanmay Vachaspati