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The nonlinear optical dynamics of nano-materials comprised of plasmons interacting with quantum emitters is investigated by a self-consistent model based on the coupled Maxwell-Liouville-von Neumann equations. It is shown that ultra-short…

Mesoscale and Nanoscale Physics · Physics 2013-12-04 Maxim Sukharev , Tamar Seideman , Robert J. Gordon , Adi Salomon , Yehiam Prior

We develop a model for the metal enrichment of the intracluster medium (ICM) that combines a cosmological non-radiative hydrodynamical N-Body/SPH simulation of a cluster of galaxies, and a semi-analytic model of galaxy formation. The novel…

Astrophysics · Physics 2009-11-11 Sofia A. Cora

Cluster growth in a coagulating system of active particles (such as microswimmers in a solvent) is studied by theory and simulation. In contrast to passive systems, the net velocity of a cluster can have various scalings dependent on the…

Soft Condensed Matter · Physics 2014-03-21 P. Cremer , H. Löwen

Three-dimensional (3D) particle-in-cell (PIC) simulations are used to investigate the interaction of ultrahigh intensity lasers ($> 10^{20}$ W/cm$^{-2}$) with matter at overcritical densities. Intense laser pulses are shown to penetrate up…

Plasma Physics · Physics 2012-05-15 F. Fiuza , R. A. Fonseca , L. O. Silva , J. Tonge , J. May , W. B. Mori

Metallic nanoclusters displaying electronic shell structure exhibit the special feature of a correlation between their geometry and the number of delocalized electrons . Their shape evolution can be described as a quantum oscillation…

Atomic and Molecular Clusters · Physics 2008-04-04 Vladimir Kresin

We discuss scaling laws of fusion yields generated by laser-plasma interactions. The yields are found to scale as a function of the laser power. The origin of the scaling law in the laser driven fusion yield is derived in terms of…

Plasma Physics · Physics 2012-12-05 Sachie Kimura , Aldo Bonasera

Experiments were performed to study electron acceleration by intense sub-picosecond laser pulses propagating in sub-mm long plasmas of near critical electron density (NCD). Low density foam layers of 300-500 um thickness were used as…

The propagation and energy coupling of intense laser beams in plasmas are critical issues in laser-driven inertial confinement fusion. Applying magnetic fields to such a setup has been evoked to enhance fuel confinement and heating, and…

In a novel experiment that images the momentum distribution of individual, isolated 100-nm-scale plasmas, we make the first experimental observation of shock waves in nanoplasmas. We demonstrate that the introduction of a heating pulse…

Exploring quantum electrodynamics in the most extreme conditions, where electron-positron pairs can emerge in the presence of a strong background field, is now becoming possible in Compton collisions between ultraintense lasers and…

A new scheme for injection and acceleration of electrons in wakefield accelerators is suggested based on the co-action of a laser pulse and an electron beam. This synergy leads to stronger wakefield generation and higher energy gain in the…

Plasma Physics · Physics 2020-07-03 S. Barzegar , A. R. Niknam

The influence of nearest-neighbor diffusion on the decay of a metastable low-coverage phase (monolayer adsorption) in a square lattice-gas model of electrochemical metal deposition is investigated by kinetic Monte Carlo simulations. The…

Materials Science · Physics 2009-11-10 Stefan Frank , Daniel E. Roberts , Per Arne Rikvold

While largely studied on the macroscopic scale, the dynamics leading to nucleation and fission processes in atmospheric aerosols are still poorly understood at the molecular level. Here, we present a joint experimental-theoretical study of…

Colloidal semiconductor nanoplatelets combine weak lateral confinement with strong Coulomb interactions, enhanced by dielectric confinement. When the platelets are charged with carriers of the same sign, this results in severe Coulomb…

Mesoscale and Nanoscale Physics · Physics 2021-06-01 Jordi Llusar , Juan I. Climente

We investigate the strongly correlated ion dynamics and the degree of coupling achievable in the evolution of freely expanding ultracold neutral plasmas. We demonstrate that the ionic Coulomb coupling parameter $\Gamma_{\rm i}$ increases…

Plasma Physics · Physics 2009-11-11 T. Pohl , T. Pattard , J. M. Rost

Electromagnetic showers developing from the collision of an ultra-intense laser pulse with a beam of high-energy electrons or photons are investigated under conditions relevant to future experiments on multi-petawatt laser facilities. A…

Plasma Physics · Physics 2024-02-08 M. Pouyez , A. A. Mironov , T. Grismayer , A. Mercuri-Baron , F. Perez , M. Vranic , C. Riconda , M. Grech

Polymer droplets subjected to a heated environment have significance in several fields ranging from spray drying and powder formation to surface coating. In the present work, we investigate the evaporation of a high viscoelastic modulus…

Soft Condensed Matter · Physics 2023-09-28 Gannena K S Raghuram , Durbar Roy , D Chaitanya Kumar Rao , Aloke Kumar , Saptarshi Basu

The dynamical response of metallic clusters up to $10^3$ atoms is investigated using the restricted molecular dynamics simulations scheme. Exemplarily, sodium like material is considered. Correlation functions are evaluated to investigate…

Atomic and Molecular Clusters · Physics 2015-05-28 Thomas Raitza , Heidi Reinholz , Igor Morozov , Gerd Röpke

This work explores the enhancement of ionization clusters around a gold nanoparticle (NP), indicative of the induction of DNA lesions, a potential trigger for cell-death. Monte Carlo track structure simulations were performed to determine…

Medical Physics · Physics 2024-03-08 Leo Thomas , Miriam Schwarze , Hans Rabus

An atomistically informed mean field cluster dynamics model has been presented to investigate the nucleation and growth of defect loops in irradiated {\alpha}-U. TEM analysis of neutron irradiated {\alpha}-U shows the evolution of SIA and…

Materials Science · Physics 2023-07-17 Sanjoy Kumar Mazumder , Tiankai Yao , Anter El-Azab
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