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The collective motion of dust particles during the mode-coupling induced melting of a two-dimensional plasma crystal is explored in molecular dynamics simulations. The crystal is compressed horizontally by an anisotropic confinement. This…

等离子体物理 · 物理学 2015-07-17 I. Laut , C. Räth , S. Zhdanov , V. Nosenko , L. Couëdel , H. M. Thomas

We present the first experimental evidence of inhomogeneous melting in a finite dusty plasma crystal confined in an anisotropic potential well. By systematically tuning the confinement anisotropy and applying controlled laser heating,…

等离子体物理 · 物理学 2026-04-01 Sushree Monalisha Sahu , Hirakjyoti Sarma , Ankit Dhaka , Pintu Bandyopadhyay , Abhijit Sen

Dedicated experiments on melting of 2D plasma crystals were carried out. The melting was always accompanied by spontaneous growth of the particle kinetic energy, suggesting a universal plasma-driven mechanism underlying the process. By…

等离子体物理 · 物理学 2015-05-18 L. Couëdel , V. Nosenko , A. V. Ivlev , S. K. Zhdanov , H. M. Thomas , G. E. Morfill

Anisotropic anomalous dust diffusion in microgravity dusty plasma is investigated using experimental data from the Plasmakristall-4 (PK-4) facility on board the International Space Station. The PK-4 experiment uses video cameras to track…

等离子体物理 · 物理学 2025-04-25 Bradley R. Andrew , Luca Guazzotto , Lorin Matthews , Hyde Truell , E. G. Kostadinova

By means of three dimensional high-resolution hybrid simulations we study the properties of the magnetic field spectral anisotropies near and beyond ion kinetic scales. By using both a Fourier analysis and a local analysis based on…

太阳与恒星天体物理 · 物理学 2019-04-18 Simone Landi , Luca Franci , Emanuele Papini , Andrea Verdini , Lorenzo Matteini , Petr Hellinger

Phonon spectra of a two-dimensional (2D) solid dusty plasma modulated by 2D square and triangular periodic substrates are investigated using Langevin dynamical simulations. The commensurability ratio, i.e., the ratio of the number of…

等离子体物理 · 物理学 2024-04-23 Y. Huang , W. Li , C. Reichhardt , C. J. O. Reichhardt , Yan Feng

In this work linear stability analysis of a magnetized dusty plasma with an anisotropic dust component having transversal motions much stronger than motions parallel to the external magnetic field, and isotropic light plasma components is…

等离子体物理 · 物理学 2015-05-13 V. V. Prudskikh , L. V. Kostyukova , Yu. A. Shchekinov

We investigate the phonon spectra of two-dimensional liquid dusty plasmas on a one-dimensional periodic substrate using numerical simulations. The propagation of the waves across the potential wells of the substrate is inhibited due to the…

等离子体物理 · 物理学 2018-12-19 W. Li , D. Huang , K. Wang , C. Reichhardt , C. J. O. Reichhardt , M. S. Murillo , Y. Feng

We investigate the acoustic normal modes ("phonons") of a 1D microfluidic droplet crystal at the crossover between 2D flow and confined 1D plug flow. The unusual phonon spectra of the crystal, which arise from long-range hydrodynamic…

流体动力学 · 物理学 2010-08-10 Tsevi Beatus , Roy Bar-Ziv , Tsvi Tlusty

Anisotropic anomalous dust diffusion in microgravity dusty plasma is investigated using experimental data from the Plasmakristall-4 (PK-4) facility on board the International Space Station. The PK-4 experiment uses video cameras to track…

等离子体物理 · 物理学 2025-07-15 Bradley R. Andrew , Luca Guazzotto , Lorin S. Matthews , Truell W. Hyde , Evdokiya G. Kostadinova

We report a theoretical investigation of DL mode (Dust Lattice) in 2D Yukawa crystal in presence of asymmetric ion flow and external magnetic field perpendicular to the crystal plane. Two mutually perpendicular modes are found to be coupled…

等离子体物理 · 物理学 2015-06-15 Saurav Bhattacharjee , Nilakshi Das

A previously developed approach for the numerical treatment of two particles that are confined in a finite optical-lattice potential and interact via an arbitrary isotropic interaction potential has been extended to incorporate an…

量子气体 · 物理学 2014-12-10 Bruno Schulz , Simon Sala , Alejandro Saenz

Complex plasmas consist of microparticles embedded in a low-temperature plasma and allow investigating various effects by tracing the motion of these microparticles. Dust density waves appear in complex plasmas as self-excited acoustic…

等离子体物理 · 物理学 2022-02-23 P. Bajaj , S. Khrapak , V. Yaroshenko , M. Schwabe

Recent inertial confinement fusion experiments have shown primary fusion spectral moments which are incompatible with a Maxwellian velocity distribution description. These results show that an ion kinetic description of the reacting ions is…

Synchrotron emission from astrophysical nonthermal sources usually assumes that the emitting particles are isotropic. By means of large-scale two- and three-dimensional particle-in-cell simulations, we demonstrate that the dissipation of…

高能天体物理现象 · 物理学 2020-06-04 Luca Comisso , Emanuele Sobacchi , Lorenzo Sironi

The naturally persistent flow of hundreds of dust particles is experimentally achieved in a dusty plasma system with the asymmetric sawteeth of gears on the electrode. It is also demonstrated that the direction of the dust particle flowcan…

等离子体物理 · 物理学 2020-02-26 Ya-feng He , Bao-quan Ai , Chao-xing Dai , Chao Song , Rui-qi Wang , Wen-tao Sun , Fu-cheng Liu , Yan Feng

Spin dynamics of two-dimensional electron gas confined in an asymmetrical quantum well is studied theoretically in the regime where the scattering frequency is comparable with the spin precession frequency due to the conduction band spin…

介观与纳米尺度物理 · 物理学 2007-12-01 M. M. Glazov

Confined modes at the edge arbitrarily inclined with respect to optical axes of nonmagnetic anisotropic 2D materials are considered. By developing the exact Wiener-Hopf and approximated Fetter methods we studied edge modes dispersions,…

介观与纳米尺度物理 · 物理学 2021-04-05 A. A. Sokolik , O. V. Kotov , Yu. E. Lozovik

Densely packed systems of thermal particles in curved geometries are frequently encountered in biological and microfluidic systems. In 2D systems, at sufficiently high surface coverage, diffusive motion is widely known to be strongly…

统计力学 · 物理学 2014-07-22 Remy Kusters , Stefan Paquay , Cornelis Storm

The nonlinear propagation of the dust-acoustic bright and dark envelope solitons in an opposite polarity dusty plasma system (composed of non-extensive $q$-distributed electrons, isothermal ions, and positively as well as negatively charged…

等离子体物理 · 物理学 2019-03-27 S. Jahan , N. A. Chowdhury , A. Mannan , A. A. Mamun
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