Propagation of solitary waves in a mixture of liquid /sup 3/He and superfluid /sup 4/He

Journal Article · Tue Jan 01 04:00:00 EST 1985 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00682566· OSTI ID:5951196

Biswas, A C; Warke, C S

The effect of an admixture of liquid /sup 3/He on the propagation of solitary waves in superfluid /sup 4/He is investigated. In the local density approximation, the mean field equations are reduced to the two-fluid equations describing the dynamics of the mixture of two liquids. The nonlinear perturbation approach is used to obtain a set of equations describing the density and velocity fluctuations of the homogeneous mixture at rest. The self-consistent solution of these equations is shown to be the solitary waves. Using a pseudopotential method, we perform numerical calculations to study the changes in the general properties of the waves caused by the /sup 3/He impurity.

• Research Organization: Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay, India
• OSTI ID: 5951196
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 58:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISPERSIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FLUIDS
HELIUM 3
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MEAN-FIELD THEORY
MIXTURES
NUCLEI
PERTURBATION THEORY
QUANTUM FLUIDS
QUASI PARTICLES
SOLITONS
STABLE ISOTOPES
WAVE PROPAGATION