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An algorithm is demonstrated that performs first-principles tracking of relativistic charged-particles. A covariant approach is used which relies on retarded vector potentials for trajectory integration instead of performing electromagnetic…

Accelerator Physics · Physics 2024-09-23 B. Folsom , E. Laface

We study quantum effects on moduli dynamics arising from particle production near the enhanced symmetry point (ESP). We focus on non-renormalizable couplings between the moduli field and the field that becomes light at the ESP. Considering…

High Energy Physics - Phenomenology · Physics 2015-06-17 Seishi Enomoto , Satoshi Iida , Nobuhiro Maekawa , Tomohiro Matsuda

We identify different schemes to enhance the violation of Leggett-Garg inequalities in open many-body systems. Considering a nonequilibrium archetypical setup of quantum transport, we show that particle interactions control the direction…

Statistical Mechanics · Physics 2019-12-02 J. J. Mendoza-Arenas , F. J. Gómez-Ruiz , F. J. Rodríguez , L. Quiroga

The interaction between electronic and vibrational degrees of freedom is an important mechanism in nonequilibrium charge transport through molecular nanojunctions. While adiabatic polaron-type coupling has been studied in great detail, new…

Mesoscale and Nanoscale Physics · Physics 2022-06-10 Christoph Kaspar , André Erpenbeck , Jakob Bätge , Christian Schinabeck , Michael Thoss

We investigate by means of numerical simulations with nested Cartesian meshes the force exerted on a massive and luminous perturber moving at constant speed through a homogeneous and opaque gas, taking into account thermal diffusion in the…

Earth and Planetary Astrophysics · Physics 2018-12-26 David A. Velasco Romero , Frédéric S. Masset

We study quantum dissipative effects that result from the non-relativistic motion of an atom, coupled to a quantum real scalar field, in the presence of a static imperfect mirror. Our study consists of two parts: in the first, we consider…

Quantum Physics · Physics 2019-09-04 M. Belen Farias , C. D. Fosco , Fernando C. Lombardo , Francisco D. Mazzitelli

Quantum fluids of light merge many-body physics and nonlinear optics, through the study of light propagation in a nonlinear medium under the shine of quantum hydrodynamics. One of the most outstanding evidence of light behaving as an…

The effective interaction between two classical nonrelativistic electrons (positrons) in the presence of intense electromagnetic radiation (one and two waves) is theoretically studied. Small relativistic corrections are taking into account…

Plasma Physics · Physics 2020-01-08 S. S. Starodub , S. P. Roshchupkin , V. V. Dubov

We show how a gradient in the motility properties of non-interacting point-like active particles can cause a pressure gradient that pushes a large inert object. We calculate the force on an object inside a system of active particles with…

Statistical Mechanics · Physics 2017-10-03 Nitzan Razin , Raphael Voituriez , Jens Elgeti , Nir S. Gov

The two-dimensional motion of an object on a moving rough horizontal plane is investigated. Two cases are studied: the plane having a translational acceleration, and a rotating plane. For the first case, the motions of a point particle and…

Classical Physics · Physics 2023-08-01 Mohammad Khorrami , Amir Aghamohammadi , Cina Aghamohammadi

I discuss the influence of adding the air resistance and the kinetic friction to the classical mechanics homework-problem: finding the motion of a body sliding down a hemispherical hill. For a physically realistic ($\propto v^2$) form of…

Classical Physics · Physics 2023-08-03 Gniewoj Michalewski

We consider the dynamical atom-surface Casimir-Polder force in the non-equilibrium configuration of an atom near a perfectly conducting wall, initially prepared in an excited state with the field in its vacuum state. We evaluate the…

We use computer simulations to study highly dense systems of granular particles that are driven by oscillating forces. We implement different dissipation mechanisms that are used to extract the injected energy. In particular, the action of…

Soft Condensed Matter · Physics 2016-10-27 Ronny Moebius , Claus Heussinger

We consider a movable mirror coupled to a one-dimensional massless scalar field in a cavity. Both the field and the mirror's mechanical degrees of freedom are described quantum-mechanically, and they can interact each other via the…

Quantum Physics · Physics 2017-08-10 Federico Armata , M. S. Kim , Salvatore Butera , Lucia Rizzuto , Roberto Passante

Electron drag measurements of electron-electron scattering rates performed close to the Fermi temperature are reported. While evidence of an enhancement due to plasmons, as was recently predicted [K. Flensberg and B. Y.-K. Hu, Phys. Rev.…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 H. Noh , S. Zelakiewicz , X. G. Feng , T. J. Gramila , L. N. Pfeiffer , K. W. West

Atomic collisions are included in an interacting system of optical fields and trapped atoms allowing field amplification. We study the effects of collisions on the system stability. Also a study of the degree of entanglement between atomic…

Quantum Physics · Physics 2008-06-17 V. V. França , G. A. Prataviera

The ability to engineer cavity-mediated interactions has emerged as a powerful tool for the generation of non-local correlations and the investigation of non-equilibrium phenomena in many-body systems. Levitated optomechanical systems have…

Exchange symmetry in acceleration partitions the configuration space of an N particle, one-dimensional, gravitational system into N! equivalent cells. We take advantage of the resulting small angular extent of each cell to construct a…

Statistical Mechanics · Physics 2009-11-11 Bruce N. Miller , Kenneth R. Yawn , Bill Maier

Capture, selective collection and flight manipulation of airborne particulate are three important functional requirements in various actively growing aerosol technology applications. Aerodynamic drag, particle inertia and dielectrophoretic…

Soft Condensed Matter · Physics 2022-03-16 Pramodt Srinivasula , Rochish M Thaokar

Non-linear electrodynamics coupled to general relativity is investigated. In general relativity, it is observed that the expansion of the universe is accelerating if the source of the gravitational field is the non-linear electromagnetic…

General Relativity and Quantum Cosmology · Physics 2018-10-05 Gauranga C. Samanta , Shantanu K. Biswal , Kazuharu Bamba
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