Magnetic Cavitation and the Reemergence of Nonlocal Transport in Laser Plasmas

Journal Article · Fri Feb 22 00:00:00 EST 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.075003· OSTI ID:21024795

Ridgers, C P; Kingham, R J; Thomas, A G. R. ^[1]

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1. Blackett Laboratory, Imperial College London, SW7 2BZ (United Kingdom)

We present the first fully kinetic Vlasov-Fokker-Planck simulations of nanosecond laser-plasma interactions including self-consistent magnetic fields and hydrodynamic plasma expansion. For the largest magnetic fields externally applied to long-pulse laser-gas-jet experiments (12 T) a significant degree of cavitation of the B field (>40%) will be shown to occur from the laser-heated region in under half a nanosecond. This is due to the Nernst effect and leads to the reemergence of nonlocality even if the initial value of the magnetic field strength is sufficient to localize the transport.

• OSTI ID: 21024795
• Journal Information: Physical Review Letters, Vol. 100, Issue 7; Other Information: DOI: 10.1103/PhysRevLett.100.075003; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHARGE TRANSPORT
FOKKER-PLANCK EQUATION
LASERS
MAGNETIC FIELDS
NERNST EFFECT
PLASMA
PLASMA EXPANSION
PULSES
SIMULATION