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We herein investigate shock formation and particle acceleration processes for both protons and electrons in a quasi-parallel high-Mach-number collisionless shock through a long-term, large-scale particle-in-cell simulation. We show that…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Tsunehiko N. Kato

The transverse momentum spectra of charged pions, kaons, and protons produced at mid-rapidity in central nucleus-nucleus (AA) collisions at high energies are analyzed by considering particles to be created from two participant partons which…

High Energy Physics - Phenomenology · Physics 2021-04-20 Li-Li Li , Fu-Hu Liu , Khusniddin K. Olimov

Laser-accelerated electron beams have been created at a kHz repetition rate from the {\it reflection} of intense ($\sim10^{18}$ W/cm$^2$), $\sim$40 fs laser pulses focused on a continuous water-jet in an experiment at the Air Force Research…

Excitability is an attribute of life, and is a driving force in the descent of complexity. Cellular electrical activity as realized by membrane proteins that act as either channels or transporters is the basis of excitability. Electrical…

Biomolecules · Quantitative Biology 2009-11-05 Ashok Palaniappan , Eric Jakobsson

Although chromium trihalides are widely regarded as a promising class of two-dimensional magnets for next-generation devices, an accurate description of their electronic structure and magnetic interactions has proven challenging to achieve.…

Mesoscale and Nanoscale Physics · Physics 2024-09-04 Ravi Yadav , Lei Xu , Michele Pizzochero , Jeroen van den Brink , Mikhail I. Katsnelson , Oleg V. Yazyev

A search for excited electrons is performed using the full $e^{\pm}p$ data sample collected by the H1 experiment at HERA, corresponding to a total luminosity of 475 pb$^{-1}$. The electroweak decays of excited electrons…

High Energy Physics - Experiment · Physics 2012-08-27 H1 Collaboration

We investigate different mechanical effects which accompany the nerve pulse propagation by using mathematical modeling. The propagation process is composed by three connected phenomena: (i) the action potential (electrical signal) which is…

Biological Physics · Physics 2019-06-05 Kert Tamm , Tanel Peets , Jüri Engelbrecht

Interplay of simultaneous creation, annihilation, propagation, and relaxation of an excitation in molecular condensates interacting with an ultrashort quantum optical pulse is studied in general and specialized to a dimer. A microscopic…

Quantum Physics · Physics 2012-08-27 J. Perina,

Laser pulses with a duration of the order of femtoseconds lead to a strong excitation, heating and potentially to ablation of the irradiated material. During the time of strong excitation, the interaction of the atoms and thus the material…

Materials Science · Physics 2025-07-01 Simon Kümmel , Johannes Roth

We consider the simplified dielectric breakage model used for simulation of the kinetics of cellular material breakage under the pulsed electric field (PEF) treatment. The model is based on an effective media approximation, which includes…

Statistical Mechanics · Physics 2007-05-23 N. I. Lebovka , M. I. Bazhal , E. I. Vorobiev

The phenomenon of electron-laser vacuum breakdown is the multiple cascade production of electron-positron pairs in head-on collision of a beam of relativistic electrons with an intense laser pulse. This effect was first predicted by the…

Optics · Physics 2026-03-17 Pavel Golovinski

We study the solar energetic particle (SEP) event observed on 9 October 2021, by multiple spacecraft including Solar Orbiter (SolO). The event was associated with an M1.6 flare, a coronal mass ejection (CME) and a shock wave. During the…

This chapter revisits the concept of excitability, a basic system property of neurons. The focus is on excitable systems regarded as behaviors rather than dynamical systems. By this we mean open systems modulated by specific interconnection…

Neurons and Cognition · Quantitative Biology 2017-04-18 Rodolphe Sepulchre , Guillaume Drion , Alessio Franci

We evaluate the electrostatic interaction energy between two surfaces, one flat and the other slightly curved, in terms of the two-point autocorrelation functions for patch potentials on each one of them, and of a single function $\psi$…

High Energy Physics - Theory · Physics 2015-06-17 C. D. Fosco , F. C. Lombardo , F. D. Mazzitelli

Electron-hole pairs can be excited coherently in a quantum conductor by applying voltage pulses on its contact. We find that these electron-hole pairs can be classified into two kinds, whose excitation probabilities have different…

Mesoscale and Nanoscale Physics · Physics 2019-07-03 X. K. Yue , Y. Yin

Biological effects of proton and light ion irradiations have been studied in detail by analyzing published cell survival data with the help of the probabilistic two-stage radiobiological model. Probabilities of single ion tracks to induce…

Biological Physics · Physics 2016-08-16 Pavel Kundrát , Miloš Lokajíček , Hana Hromčíková , Libor Judas

Mutual forces can be induced between coupled structures when illuminated by external acoustic waves. In this Letter, we propose a concept of asymmetric interaction between two coupled plate-like structures, which is generated by oppositely…

Classical Physics · Physics 2016-01-20 Xiying Fan , Chunyin Qiu , Shenwei Zhang , Manzhu Ke , Zhengyou Liu

We study the dynamics of a thick polar epithelium subjected to the action of both an electric and a flow field in a planar geometry. We develop a generalized continuum hydrodynamic description and describe the tissue as a two component…

Cell Behavior · Quantitative Biology 2018-11-12 Niladri Sarkar , Jacques Prost , Frank Jülicher

Spiral waves are self-repeating waves that can form in excitable media, propagating outward from their center in a spiral pattern. Spiral waves have been observed in different natural phenomena and have been linked to medical conditions…

Cellular Automata and Lattice Gases · Physics 2020-08-11 Vincent Vangelista , Karl Amjad-Ali , Minhyeok Kwon , Paulo H. Acioli

Three-body and four-body interactions have been directly measured in a colloidal system comprised of three (or four) charged colloidal particles. Two of the particles have been confined by means of a scanned laser tweezers to a line-shaped…

Soft Condensed Matter · Physics 2009-11-13 J. Dobnikar , M. Brunner , Jörg Baumgartl , H. H. von Grünberg , C. Bechinger
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