Stability of superflow in /sup 3/He-A

Journal Article · Mon Nov 14 04:00:00 EST 1977 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.39.1290· OSTI ID:5392399

Bhattacharyya, P; Ho, T; Mermin, N D

The stability condition is derived for uniform bulk superflow along a uniform texture in /sup 3/He-A. The weak-coupling free-energy parameters in the dipole-locked Ginzburg-Landau regime give stable flow, but a 10% departure from these values can give instability. When present, the instability can reflect the absence of any activation-energy barrier against decay of the superflow through the appearance of vortex textures near the surface. We relate these conclusions to the hydrodynamic instability reported by Hook and Hall.

• Research Organization: Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853
• OSTI ID: 5392399
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 39:20; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
EVEN-ODD NUCLEI
FLUID MECHANICS
HELIUM 3
HELIUM 3 A
HELIUM ISOTOPES
HYDRODYNAMICS
INSTABILITY
ISOTOPES
LIGHT NUCLEI
MECHANICS
NUCLEI
ORDER PARAMETERS
STABILITY
STABLE ISOTOPES
SUPERFLUIDITY
VORTICES