Localized whistlers in magnetized spin quantum plasmas

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)

DOI:https://doi.org/10.1103/PHYSREVE.82.056406· OSTI ID:21502859

Misra, A P; Brodin, G; Marklund, M ^[1]; Shukla, P K ^[1]

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1. Department of Physics, Umeaa University, SE-901 87 Umeaa (Sweden)

The nonlinear propagation of electromagnetic (EM) electron-cyclotron waves (whistlers) along an external magnetic field, and their modulation by electrostatic small but finite amplitude ion-acoustic density perturbations are investigated in a uniform quantum plasma with intrinsic spin of electrons. The effects of the quantum force associated with the Bohm potential and the combined effects of the classical as well as the spin-induced ponderomotive forces (CPF and SPF, respectively) are taken into consideration. The latter modify the local plasma density in a self-consistent manner. The coupled modes of wave propagation is shown to be governed by a modified set of nonlinear Schroedinger-Boussinesq-like equations which admit exact solutions in form of stationary localized envelopes. Numerical simulation reveals the existence of large-scale density fluctuations that are self-consistently created by the localized whistlers in a strongly magnetized high density plasma. The conditions for the modulational instability (MI) and the value of its growth rate are obtained. Possible applications of our results, e.g., in strongly magnetized dense plasmas and in the next generation laser-solid density plasma interaction experiments are discussed.

• OSTI ID: 21502859
• Journal Information: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print), Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevE.82.056406; (c) 2010 The American Physical Society; ISSN 1539-3755
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
COMPUTERIZED SIMULATION
DENSITY
ELECTRONS
EXACT SOLUTIONS
INSTABILITY
IONS
LASERS
MAGNETIC FIELDS
NONLINEAR PROBLEMS
PERTURBATION THEORY
PLASMA DENSITY
PONDEROMOTIVE FORCE
QUANTUM PLASMA
SCHROEDINGER EQUATION
SPIN
WAVE PROPAGATION
WHISTLERS
ANGULAR MOMENTUM
CHARGED PARTICLES
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
LEPTONS
MATHEMATICAL SOLUTIONS
NOISE
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PLASMA
RADIATIONS
RADIO NOISE
RADIOWAVE RADIATION
SIMULATION
WAVE EQUATIONS