TY - JOUR

T1 - Orbital Viscosity in Superfluid 3He-B in a Magnetic Field

AU - Suramlishvili, Nugzar

AU - Fisher, Shaun N.

PY - 2005/2/15

Y1 - 2005/2/15

N2 - Orbital viscosity is usually associated with the A phase of superfluid 3He which has a finite orbital angular momentum even in zero magnetic field. The B phase has no orbital angular momentum in zero magnetic field, but both spin and orbital angular momenta are induced by a field. The Leggett equations for spin dynamics assume that the orbital angular momentum can only charge on timescales much longer than those involved in spin dynamics. We calculate the orbital viscosity of the B phase in both the hydrodynamic and ballistic limits. At low temperatures the orbital viscosity becomes vanishingly small which gives rise to the possibility of coupled spin-orbit dynamics.

AB - Orbital viscosity is usually associated with the A phase of superfluid 3He which has a finite orbital angular momentum even in zero magnetic field. The B phase has no orbital angular momentum in zero magnetic field, but both spin and orbital angular momenta are induced by a field. The Leggett equations for spin dynamics assume that the orbital angular momentum can only charge on timescales much longer than those involved in spin dynamics. We calculate the orbital viscosity of the B phase in both the hydrodynamic and ballistic limits. At low temperatures the orbital viscosity becomes vanishingly small which gives rise to the possibility of coupled spin-orbit dynamics.

U2 - 10.1007/s10909-005-2301-4

DO - 10.1007/s10909-005-2301-4

M3 - Article (Academic Journal)

SN - 0022-2291

VL - 138

SP - 771

EP - 776

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 3-4

ER -