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We investigate the role of thermal instability, arising from radiative cooling of an optically thin, dusty plasma, by linear stability analysis. The corresponding isobaric stability condition for condensation mode is found to be modified…

等离子体物理 · 物理学 2007-05-23 Madhurjya P. Bora

The dynamics of linear perturbations in a radiatively cooling dusty plasma is considered, with the charge of both dust ($Z_d$) and plasma ($Z_p$) components being allowed to vary with their densities. It is shown that in the long-wavelength…

等离子体物理 · 物理学 2009-11-07 Miguel H. Ibanez S. , Yuri A. Shchekinov

A new method called `Configurational Temperature' is introduced in the context of dusty plasma, where the temperature of the dust particles, submerged in the plasma, can be measured directly from the positional information of the individual…

等离子体物理 · 物理学 2020-06-24 Rupak Mukherjee , Surabhi Jaiswal , Manish K Shukla , Ammar Hakim , Edward Thomas

Dust particulates immersed in a quasineutral plasma can emit electrons in several important applications. Once electron emission becomes strong enough, the dust enters the positively charged regime where the conventional…

等离子体物理 · 物理学 2014-08-19 Gian Luca Delzanno , Xian-Zhu Tang

The temperature of a dust ensemble in a dusty plasma is one of its most fundamental properties. Here, we present experiments using the configurational temperature as a for the temperature analysis in dusty plasmas. Using a model of the…

等离子体物理 · 物理学 2020-01-28 Michael Himpel , André Melzer

We perform non-equilibrium simulations to study heat conduction in two-dimensional strongly coupled dusty plasmas. Temperature gradients are established by heating one part of the otherwise equilibrium system to a higher temperature. Heat…

等离子体物理 · 物理学 2015-05-13 Lu-Jing Hou , Alexander Piel

It is demonstrated experimentally that strongly-coupled plasma exhibits solid superheating. A 2D suspension of microspheres in dusty plasma, initially self-organized in a solid lattice, was heated and then cooled rapidly by turning laser…

软凝聚态物质 · 物理学 2010-09-09 Yan Feng , J. Goree , Bin Liu

We present a scheme for achieving thermal bistability based on the selective coupling of three optical resonances. This approach requires one of the resonant frequencies to be temperature dependent, which can occur in materials exhibiting…

介观与纳米尺度物理 · 物理学 2017-09-13 Chinmay Khandekar , Alejandro W. Rodriguez

A linear analysis based on two-fluid equations in the approximation of a cold plasma, wherein the plasma temperature is assumed to be zero, demonstrates that a two-stream instability occurs in all cases. However, if this were true, the…

等离子体物理 · 物理学 2023-06-28 Shinji Koide , Masaaki Takahashi , Rohta Takahashi

We develop a stochastic model for the charge fluctuations on a microscopic dust particle resting on a surface exposed to plasma. We find in steady state that the fluctuations are normally distributed with a standard deviation that is…

等离子体物理 · 物理学 2015-05-27 T. E. Sheridan , A. Hayes

One considers the motion of a test particle in an homogeneous fluid in equilibrium at temperature $T$, undergoing dissipative collisions with the fluid particles. It is shown that the corresponding linear Boltzmann equation still posseses a…

统计力学 · 物理学 2007-05-23 Ph. A. Martin , J. Piasecki

Dusty plasmas are a model system for studying strong correlation. The dust grains' size of a few micro-meters and their characteristic oscillation frequency of a few hertz allows for an investigation of many particle effects on an atomic…

等离子体物理 · 物理学 2013-09-19 Giedrius Kudelis , Hauke Thomsen , Michael Bonitz

We present an analysis of radiation induced instabilities in an expanding plasma with considerable presence of dust particles and equilibrium cooling. We have shown that the equilibrium expansion and cooling destabilize the radiation…

等离子体物理 · 物理学 2009-11-13 Madhurjya P. Bora , Manasi Buzar Baruah

There is a quickly increasing wealth of experimental data on so-called dusty plasmas i. e. ionized gases or usual plasmas that contain micron sized charged particles. Interest in these structures is driven both by their importance in many…

等离子体物理 · 物理学 2009-11-13 Barbara Atamaniuk , Krzysztof Zuchowski

We investigate the phenomenon of bistability in a thermal gas of cesium atoms excited to Rydberg states. We present both measurements and a numerical model of the phenomena based on collisions. By directly measuring the plasma frequency, we…

原子物理 · 物理学 2019-04-24 Daniel Weller , James P. Shaffer , Tilman Pfau , Robert Löw , Harald Kübler

Temperature dependence of an electron-nuclear plasma equilibrium density is considered basing on known approaches, which are given in (1)(2). It is shown that at a very high temperature, which is characteristic for a star interior, the…

天体物理学 · 物理学 2010-11-11 B. V. Vasiliev

We establish three partial differential equation models describing the thermodynamics of the fluid, by combining the energetic variational approach, appropriate constitutive relations, and classical thermodynamics laws. What is more, by…

偏微分方程分析 · 数学 2020-11-23 Ning-An Lai , Chun Liu , Andrei Tarfulea

In this work linear stability analysis of a four-fluid optically thin plasma consisting of electrons, ions, neutral atoms, and charged dust particles is performed with respect to the radiation-condensation (RC) instability. The energy…

等离子体物理 · 物理学 2009-11-13 A. Kopp , Yu. A. Shchekinov

A two-dimensional half-filled lattice gas model with nearest-neighbor attractive interaction is studied where particles are coupled to two thermal baths at different temperatures $T_1$ and $T_2$. The hopping of particles is governed by the…

统计力学 · 物理学 2009-10-31 Attila Szolnoki

We study the interplay among cooling, heating, conduction, and magnetic fields in gravitationally stratified plasmas using simplified, plane-parallel numerical simulations. Since the physical heating mechanism remains uncertain in massive…

宇宙学与河外天体物理 · 物理学 2012-12-05 Michael McCourt , Prateek Sharma , Eliot Quataert , Ian J. Parrish
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