Nonlinear effects in two-dimensional superfluid /sup 4/He

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.22.2581· OSTI ID:5049474

Biswas, A C; Warke, C S

A nonlinear finite-amplitude density-wave-propagation equation in two-dimensional superfluid /sup 4/He is derived. Though this equation is similar to that investigated by Huberman, it differs in the coefficient of the nonlinear term of the Korteweg--de Vries equation used by him. The conditions are studied for the propagation of solitons in thin superfluid films at low temperatures. Possible experiments are discussed to test the predictions of the theory.

• Research Organization: Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400005, India
• OSTI ID: 5049474
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 22:5; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRELATIONS
DIFFERENTIAL EQUATIONS
DIMENSIONS
EQUATIONS
EVEN-EVEN NUCLEI
FLUIDS
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
KORTEWEG-DE VRIES EQUATION
LIGHT NUCLEI
NONLINEAR PROBLEMS
NUCLEI
QUANTUM FLUIDS
QUASI PARTICLES
SOLITONS
STABLE ISOTOPES
SUPERFLUIDITY
WAVE PROPAGATION