Orbital dynamics in superfluid /sup 3/He. I. Homogeneous systems

Journal Article · Sun Oct 01 04:00:00 EDT 1978 · Phys. Rev., B: Solid State; (United States)

DOI:https://doi.org/10.1103/PhysRevB.18.3139· OSTI ID:6578395

Combescot, R

A general theory of orbital dynamics is proposed which makes use of a k-space time-dependent rotation to take into account the motion of the order parameter. The kinetic equation for Bogoliubov quasiparticles is written. Together with the angular momentum conservation law, this gives a closed set of equations for orbital dynamics. The collisionless regime and the hydrodynamic regime are studied and the results are compared to those of Leggett and Takagi, and of Cross and Anderson. It is shown how, within this theory, orbital dynamics reduces to spin dynamics in /sup 3/He-B and, in /sup 3/He-A, for rotations around l reduces to the dynamics of the phase of the order parameter.

• Research Organization: Groupe de Physique des Solides de l'Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris 05, France
• OSTI ID: 6578395
• Journal Information: Phys. Rev., B: Solid State; (United States), Journal Name: Phys. Rev., B: Solid State; (United States) Vol. 18:7; ISSN PLRBA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM OPERATORS
BOGOLYUBOV METHOD
EQUATIONS
EVEN-ODD NUCLEI
HELIUM 3
HELIUM 3 A
HELIUM 3 B
HELIUM 3A1
HELIUM ISOTOPES
ISOTOPES
KINETIC EQUATIONS
LIGHT NUCLEI
MATHEMATICAL OPERATORS
NUCLEI
ORBITAL MOMENTUM OPERATORS
QUANTUM OPERATORS
STABLE ISOTOPES
SUPERFLUIDITY