Results 11 to 20 of about 16,729 (258)

Glueballs and statistical mechanics of the gluon plasma [PDF]

open access: yesPhysical Review D, 2009
We study a pure gluon plasma in the context of quasiparticle models, where the plasma is considered as an ideal gas of massive bosons. In order to reproduce SU(3) gauge field lattice data within such a framework, we review briefly the necessity to use a temperature-dependent gluon mass which accounts for color interactions between the gluons near $T_ ...
Brau, Fabian, Buisseret, F.
openaire   +4 more sources

A critique of recent semi-classical spin-half quantum plasma theories [PDF]

open access: yes, 2014
Certain recent semi-classical theories of spin-half quantum plasmas are examined with regard to their internal consistency, physical applicability and relevance to fusion, astrophysical and condensed matter plasmas.
Krishnaswami, Govind S.   +3 more
core   +2 more sources

Relaxed plasma equilibria and entropy-related plasma self-organization principles [PDF]

open access: yes, 2015
The concept of plasma relaxation as a constrained energy minimization is reviewed. Recent work by the authors on generalizing this approach to partially relaxed threedimensional plasma systems in a way consistent with chaos theory is discussed, with a ...
Dewar, Robert   +4 more
core   +1 more source

A Fractional Fokker-Planck Model for Anomalous Diffusion [PDF]

open access: yes, 2014
In this paper we present a study of anomalous diffusion using a Fokker-Planck description with fractional velocity derivatives. The distribution functions are found using numerical means for varying degree of fractionality observing the transition from a
Eun-jin Kim   +6 more
core   +2 more sources

Non-Linear Langevin and Fractional Fokker-Planck Equations for Anomalous Diffusion by Levy Stable Processes [PDF]

open access: yes, 2018
The~numerical solutions to a non-linear Fractional Fokker--Planck (FFP) equation are studied estimating the generalized diffusion coefficients. The~aim is to model anomalous diffusion using an FFP description with fractional velocity derivatives and ...
Anderson, Johan   +2 more
core   +2 more sources

Transition Probability to Turbulent Transport Regime [PDF]

open access: yes, 2002
Transition phenomena between thermal noise state and turbulent state observed in a submarginal turbulent plasma are analyzed with statistical theory.
Atsushi Furuya   +14 more
core   +3 more sources

Statistical Mechanics where Newton’s Third Law is Broken

open access: yesPhysical Review X, 2015
There is a variety of situations in which Newton’s third law is violated. Generally, the action-reaction symmetry can be broken for mesoscopic particles, when their effective interactions are mediated by a nonequilibrium environment. Here, we investigate
A. V. Ivlev   +5 more
doaj   +1 more source

Kappa and q Indices: Dependence on the Degrees of Freedom

open access: yesEntropy, 2015
The kappa distributions, or their equivalent, the q-exponential distributions, are the natural generalization of the classical Boltzmann-Maxwell distributions, applied to the study of the particle populations in collisionless space plasmas.
George Livadiotis
doaj   +1 more source

“Lagrangian Temperature”: Derivation and Physical Meaning for Systems Described by Kappa Distributions

open access: yesEntropy, 2014
The paper studies the “Lagrangian temperature” defined through the entropy maximization in the canonical ensemble, which is the negative inverse Lagrangian multiplier corresponding to the constraint of internal energy.
George Livadiotis
doaj   +1 more source

Kinetic theory of acoustic-like modes in nonextensive pair plasmas [PDF]

open access: yes, 2013
The low-frequency acoustic-like modes in a pair plasma (electron-positron or pair-ion) is studied by employing a kinetic theory model based on the Vlasov and Poisson's equation with emphasizing the Tsallis's nonextensive statistics.
Esfandyari-Kalejahi, A., Saberian, E.
core   +1 more source

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