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Parametric excitation of axions by two beating electromagnetic fields is considered here. This can be used as a new concept for active experiments using the existing ultra-intense laser systems. Comparison is made of this active…

High Energy Physics - Phenomenology · Physics 2009-11-13 J. T. Mendonca

We investigate, within a local density functional theory formalism, the interactions between like-charged polyions immersed in a confined electrolyte. We obtain a simple condition for a repulsive effective pair potential, that can be…

Soft Condensed Matter · Physics 2009-10-31 E. Trizac

Nonlinear systems driven by recurrent signals are known to exhibit complex dynamical responses which, in the physiological context, can have important functional consequences. One of the simplest biological systems that is exposed to such…

Subcellular Processes · Quantitative Biology 2018-07-04 Tanmay Mitra , Shakti N. Menon , Sitabhra Sinha

Laser-solid interaction can lead to the acceleration of protons to tens of MeV. Here, we show that a strong enhancement of this acceleration can be achieved by splitting the laser pulse to two parts of equal energy and opposite incidence…

Plasma Physics · Physics 2019-03-11 J. Ferri , E. Siminos , T. Fülöp

A theory for the many-electron multi-photon process is presented. It is shown that after single-electron excitation into some level in the continuum (ATI) an inelastic collision of the excited electron with the parent atomic particle can…

atom-ph · Physics 2009-10-28 M. Yu. Kuchiev

Characterizing user to access point (AP) association strategies in heterogeneous cellular networks (HetNets) is critical for their performance analysis, as it directly influences the load across the network. In this letter, we introduce and…

Information Theory · Computer Science 2013-10-08 Sarabjot Singh , Francois Baccelli , Jeffrey G. Andrews

In this paper, we theoretically study the electrostatic interaction between a pair of identical colloids with constant surface potentials sitting in close vicinity of each other at a fluid interface. By employing a simplified yet reasonable…

Soft Condensed Matter · Physics 2020-07-29 Rick Bebon , Arghya Majee

Using both theoretical modeling and computer simulations we study a model system for DNA interactions in the vicinity of charged membranes. We focus on the polarization of the mobile charges in the membranes due to the nearby charged rods…

Soft Condensed Matter · Physics 2009-10-31 Rebecca Menes , Niels Gronbech Jensen , Phil A. Pincus

Advances in cellular networks such as device-to-device communications and full-duplex radios, as well as the inherent elimination of intra-cell interference achieved by network-controlled multiple access schemes, motivates the investigation…

Information Theory · Computer Science 2018-08-28 Stelios Stefanatos , Antonis G. Gotsis , Angeliki Alexiou

By means of a particle-in-cell (PIC) simulation, we study the interaction between a uniform magnetized ambient electron-proton plasma at rest and an unmagnetized pair plasma, which we inject at one simulation boundary with a mildly…

High Energy Astrophysical Phenomena · Physics 2024-06-19 M E Dieckmann , D Folini , R Walder , A Charlet , A Marcowith

Atomic array coupled to a one-dimensional nanophotonic waveguide allows photon-mediated dipole-dipole interactions and nonreciprocal decay channels, which hosts many intriguing quantum phenomena owing to its distinctive and emergent quantum…

Quantum Physics · Physics 2024-03-26 I Gusti Ngurah Yudi Handayana , Chun-Chi Wu , Sumit Goswami , Ying-Cheng Chen , H. H. Jen

We investigate the emergent interactions between two active Brownian particles coupled by an attractive harmonic potential and in contact with a thermal reservoir. By analyzing the stationary distribution of their separation, we demonstrate…

Statistical Mechanics · Physics 2025-10-08 Ritwick Sarkar , Sreya Chatterjee , Urna Basu

This work examines the formation of wake fields caused by ions streaming around a charged dust particle, using three-dimensional particle-in-cell (PIC) simulations with charge-neutral collisions included. The influence of an external…

Plasma Physics · Physics 2017-11-06 Sita Sundar , Hanno Kählert , Jan-Philip Joost , Patrick Ludwig , Michael Bonitz

The collective behaviour of confluent cell sheets is strongly influenced both by polar forces, arising through cytoskeletal propulsion and by active inter-cellular forces, which are mediated by interactions across cell-cell junctions. We…

Soft Condensed Matter · Physics 2020-05-28 Guanming Zhang , Romain Mueller , Amin Doostmohammadi , Julia M. Yeomans

We present the first three-dimensional fully kinetic electromagnetic relativistic particle-in-cell simulations of the collision of two interpenetrating plasma shells. The highly accurate plasma-kinetic "particle-in-cell" (with the total of…

Astrophysics · Physics 2009-11-10 L. O. Silva , R. A. Fonseca , J. Tonge , J. M. Dawson , W. B. Mori , M. V. Medvedev

We investigate electron acceleration resulting from 3D magnetic reconnection between an emerging, twisted magnetic flux rope and a pre-existing weak, open magnetic field. We first follow the rise of an unstable, twisted flux tube with a…

Solar and Stellar Astrophysics · Physics 2012-11-07 G. Baumann , Å. Nordlund

Processes of propagation and interaction of nonlinear gravity-capillary waves on the free surface of a deep non-conducting liquid with high dielectric constant under the action of a tangential electric field are numerically simulated. The…

Fluid Dynamics · Physics 2018-10-10 Evgeny A. Kochurin , Nikolay M. Zubarev

Interaction between two interpenetrating spherically symmetric charge distributions has been calculated. Limited range terms appear in addition to the Coulomb potential. Its strength increases and range decreases with reducing sizes of the…

Nuclear Theory · Physics 2009-03-20 A. Mukherji

We report on new results of a search for two-photon interaction with axionlike particles (ALPs). The experiment was carried out at a synchrotron radiation facility using a "light shining through a wall (LSW)" technique. For this purpose, we…

High Energy Physics - Experiment · Physics 2017-02-21 T. Inada , T. Yamazaki , T. Namba , S. Asai , T. Kobayashi , K. Tamasaku , Y. Tanaka , Y. Inubushi , K. Sawada , M. Yabashi , T. Ishikawa , A. Matsuo , K. Kawaguchi , K. Kindo , H. Nojiri

We report the first experimental demonstration that two light pulses were made motionless and interacted with each other via a medium. The interaction time is, in principle, as long as possible and a considerable efficiency can be achieved…

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