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The stability and dynamics of a free magnetic polaron are studied by Monte Carlo simulation of a classical two-dimensional Heisenberg model coupled to a single electron. We compare our results to the earlier mean-field analysis of the…

Strongly Correlated Electrons · Physics 2009-10-31 M. J. Calderon , L. Brey , P. B. Littlewood

This work presents (i) a framework for certifying small-signal frequency stability of a power system with line dynamics and heterogeneous bus dynamics, (ii) a novel reduced-order model of damper windings in synchronous machines, and (iii) a…

Systems and Control · Electrical Eng. & Systems 2026-01-28 Dahlia Saba , Dominic Groß

In this paper we explore the stability of an inverted pendulum with generalized parametric excitation described by a superposition of $N$ sines with different frequencies and phases. We show that when the amplitude is scaled with the…

Classical Physics · Physics 2017-04-26 Roberto da Silva , Sandra D. Prado , Henrique A. Fernandes

There are numerous examples of natural and artificial processes that represent stochastic sequences of events followed by an absolute refractory period during which the occurrence of a subsequent event is impossible. In the simplest case of…

Neurons and Cognition · Quantitative Biology 2022-01-24 A. V. Paraskevov , A. S. Minkin

In this paper, we report an experiment about the device-independent tests of classical and quantum entropy based on a recent proposal [Phys. Rev. Lett. 115, 110501 (2015)], in which the states are encoded on the polarization of a biphoton…

Quantum Physics · Physics 2017-01-04 Feng Zhu , Wei Zhang , Sijing Chen , Lixing You , Zhen Wang , Yidong Huang

A driven pendulum with vertical oscillations of pendulum support (Kapitza pendulum) possesses a number of unusual properties and is a popular object of both analytical and numerical studies. Although some spectacular results can be…

Other Condensed Matter · Physics 2011-03-31 G. E. Astrakharchik , N. A. Astrakharchik

The normal and the inverted pendulum continue to be one of the main physical models and metaphors in science. The inverted pendulum is also a classic study case in control theory. In this paper we consider a special demonstration version of…

Biological Physics · Physics 2007-05-23 Frank Borg

In this chapter we treat the quantum damped harmonic oscillator, and study mathematical structure of the model, and construct general solution with any initial condition, and give a quantum counterpart in the case of taking coherent state…

Quantum Physics · Physics 2012-09-10 Kazuyuki Fujii

The quantum theory of the damped harmonic oscillator has been a subject of continual investigation since the 1930s. The obstacle to quantization created by the dissipation of energy is usually dealt with by including a discrete set of…

Quantum Physics · Physics 2015-06-05 T. G. Philbin

A damped driven pendulum with a magnetic driving force, appearing from a solenoid, where ac current flows is considered. The solenoid acts on the magnet, which is located at the free end of the pendulum. In this system, the existence and…

Classical Physics · Physics 2016-08-08 Giorgi Khomeriki

We present spontaneous symmetry breaking in a nanoscale version of a setup prolific in classical mechanics: two coupled nanomechanical pendulums. The two pendulums are electron shuttles fabricated as nanopillars and placed between two…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Chulki Kim , Jonghoo Park , Robert H. Blick

We consider the impact of stochastic perturbations on otherwise coherent oscillations of classical pulsators. The resulting dynamics are modelled by a driven damped harmonic oscillator subject to either an external or an internal forcing…

Solar and Stellar Astrophysics · Physics 2020-01-22 P. P. Avelino , M. S. Cunha , W. J. Chaplin

Sand traps are used to measure Aeolian flux. Since they modify the surrounding wind velocity field their gauging represents an important challenge. We use numerical simulations under the assumption of homogeneous turbulence based on FLUENT…

Fluid Dynamics · Physics 2008-08-21 A. D. Araújo , J. S. Andrade , L. P. Maia , H. J. Herrmann

In this work, we present a novel actuation strategy for a suspended aerial platform. By utilizing an underactuation approach, we demonstrate the successful oscillation damping of the proposed platform, modeled as a spherical double…

Robotics · Computer Science 2024-02-01 Hemjyoti Das , Minh Nhat Vu , Tobias Egle , Christian Ott

The effect of damping in the wave turbulence regime for thin vibrating plates is studied. An experimental method, allowing measurements of dissipation in the system at all scales, is first introduced. Practical experimental devices for…

We describe a magnetically driven torsional oscillator that is well suited for teaching the physics of simple harmonic motion using a collection of hands-on, quantitative experiments. The mechanical Q of the system can be tuned using…

Physics Education · Physics 2026-03-31 Kenneth G. Libbrecht

In this paper we have investigated the dynamics of a damped harmonic oscillator in the presence of an electromagnetic field. The transients for the two dimensional harmonic oscillator imply about the modulation of the frequency of the…

Classical Physics · Physics 2021-07-29 L. R. Rahul Biswas , Joydip Das , Bidhan Chandra Bag

We experimentally perform the simulation of open quantum dynamics in single-qudit systems. Using a spatial light modulator as a dissipative optical device, we implement dissipative-dynamical maps onto qudits encoded in the transverse…

Quantum Physics · Physics 2015-11-10 B. Marques , A. A. Matoso , W. M. Pimenta , A. J. Gutiérrez-Esparza , M. F. Santos , S. Pádua

When a colloidal probe is forced through a viscoelastic fluid which is characterized by a long stress-relaxation time, the fluid is excited out of equilibrium. This is leading to a number of interesting effects including a non-trivial…

Soft Condensed Matter · Physics 2024-02-05 Karthika Krishna Kumar , Juliana Caspers , Félix Ginot , Matthias Krüger , Clemens Bechinger

In this paper, we handle the problem of the motion of the Foucault pendulum. We explore a new method induced from the De Alembert Principle giving the motional equations without small-amplitude oscillation approximation. The result of the…

Classical Physics · Physics 2015-04-16 Zhiwu Zheng