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Discrete simulation methods are efficient tools to investigate the complex behaviors of complex fluids made of either dry granular materials or dilute suspensions. By contrast, materials made of soft and/or concentrated units (emulsions,…

Fluid Dynamics · Physics 2008-12-18 Pierre Rognon , Cyprien Gay

Langevin dynamical simulations are performed to investigate the depinning dynamics of a two-dimensional solid dusty plasma, which is modulated by one-dimensional nonlinear deformed periodic substrates, and also driven by the combination of…

Plasma Physics · Physics 2025-07-16 Zhaoye Wang , Nichen Yu , Ao xu , Chen Liang , C. Reichhardt , C. J. O. Reichhardt , Yan Feng

Relativistic self-focusing and channeling of intense laser pulses have been studied in underdense plasma using 2D PIC simulations, for different laser powers and plasma densities. Analytical solutions for the stationary evacuated channels…

Plasma Physics · Physics 2015-05-14 N. Naseri , S. G. Bochkarev , W. Rozmus

A two-dimensional (2D) shock-rest-frame model for particle simulations is developed. Then full kinetic dynamics of a perpendicular collisionless shock is examined by means of a 2D full particle simulation. We found that in the 2D simulation…

Astrophysics · Physics 2009-11-13 Takayuki Umeda , Masahiro Yamao , Ryo Yamazaki

Prostate cancer is a major global health concern, requiring advancements in robotic surgery and diagnostics to improve patient outcomes. A phantom is a specially designed object that simulates human tissues or organs. It can be used for…

Medical Physics · Physics 2025-08-25 Sizhe Tian , Yinoussa Adagolodjo , Jeremie Dequidt

Tin (Sn) plays a crucial role in studying the dynamic mechanical responses of ductile metals under shock loading. Atomistic simulations serves to unveil the nano-scale mechanisms for critical behaviors of dynamic responses. However,…

Materials Science · Physics 2025-05-20 Yixin Chen , Xiaoyang Wang , Wanghui Li , Mohan Chen , Han Wang

Fast Ignition Inertial Confinement Fusion is a variant of inertial fusion in which DT fuel is first compressed to high density and then ignited by a relativistic electron beam generated by a fast (< 20 ps) ultra-intense laser pulse, which…

Diffusion-based policies have achieved remarkable results in robotic manipulation but often struggle to adapt rapidly in dynamic scenarios, leading to delayed responses or task failures. We present DCDP, a Dynamic Closed-Loop Diffusion…

Robotics · Computer Science 2026-03-18 Pengyuan Wu , Pingrui Zhang , Zhigang Wang , Dong Wang , Bin Zhao , Xuelong Li

Laser-produced plasma (LPP) induced during irradiation of a liquid tin droplet with diameter of 150 um and 180 um by CO2 laser pulse with various pulse durations and energies is considered. The two-dimensional radiative magnetohydrodynamic…

Plasma Physics · Physics 2022-10-05 Vasily S Zakharov , Xinbing Wang , Sergey V. Zakharov , Duluo Zuo , Junwu Wang

A microscopic description of nuclear fission represents one of the most challenging problems in nuclear theory. While phenomenological coordinates, such as multipole moments, have often been employed to describe fission, it is not obvious…

Nuclear Theory · Physics 2023-10-19 N. Hizawa , K. Hagino

We show how the conversion of magnetic field energy via magnetic reconnection can progress in a fully three-dimensional, fast, volume-filling regime. An initial configuration representative of many laboratory, space and astrophysical…

Solar and Stellar Astrophysics · Physics 2015-05-27 Giovanni Lapenta , Lapo Bettarini

Quasi-phase matched direct laser acceleration (DLA) of electrons can be realized with guided, radially polarized laser pulses in density-modulated plasma waveguides. A 3-D particle-in-cell model has been developed to describe the…

Plasma Physics · Physics 2015-06-19 M. -W. Lin , Y. -L. Liu , S. -H. Chen , I. Jovanovic

The Pulsed RF Heating (PRFH) is the well known effect in the development of high gradient accelerating cavities. There is a lot of research dedicated to the tolerable strength of electromagnetic field and the corresponding temperature rise…

Accelerator Physics · Physics 2018-12-27 V. Paramonov , B. Militsyn , A. Skassyrskaya

We perform 2D and 3D kinetic simulations of reconnection-mediated turbulent flares in a magnetized electron-positron plasma, with weak and strong radiative cooling. Such flares can be generated around neutron stars and accreting black…

High Energy Astrophysical Phenomena · Physics 2021-11-17 J. Nättilä , A. M. Beloborodov

Collective transport properties of a one-dimensional asymmetric periodic substrate (1DAPS) modulated two-dimensional dusty plasma (2DDP) driven by an unbiased sinusoidal excitation force are investigated using Langevin dynamical…

Plasma Physics · Physics 2022-10-06 Wei Li , D. Huang , C. Reichhardt , C. J. O. Reichhardt , Yan Feng

Reaching light intensities above $10^{25}$ W/cm$^{2}$ and up to the Schwinger limit ($10^{29}$ W/cm$^{2}$) would enable testing decades-old fundamental predictions of Quantum Electrodynamics. A promising yet challenging approach to achieve…

Optics · Physics 2020-07-13 L. Chopineau , A. Denoeud , A. Leblanc , E. Porat , Ph. Martin , H. Vincenti , F. Quéré

Compressed ultrafast photography (CUP) is applied to laser breakdown in argon and xenon under pressures up to 40atm to obtain 2D images of the plasma dynamics of single events with a spatial resolution of 250x100 pixels and an equivalent…

We study the fission dynamics of 240Pu within an implementation of the Density Functional Theory (DFT) extended to superfluid systems and real-time dynamics. We demonstrate the critical role played by the pairing correlations. The evolution…

Nuclear Theory · Physics 2017-12-14 A. Bulgac , S. Jin , P. Magierski , K. J. Roche , I. Stetcu

We simulate fusion in a Z-pinch; where the load is a xenon-plasma liner imploding onto a deuterium-tritium plasma target and the driver is a 2 MJ, 17 MA, 95 ns risetime pulser. The implosion system is modeled using the dynamic, 2-1/2 D,…

Plasma Physics · Physics 2009-11-13 H. U. Rahman , F. J. Wessel , N. Rostoker , P. Ney

Ultra-wideband (UWB) electromagnetic pulses of nanosecond duration, or nanopulses, have been recently approved by the Federal Communications Commission for a number of various applications. They are also being explored for applications in…

Biological Physics · Physics 2009-11-11 Neven Simicevic