Solitons, Bose-Einstein condensation, and superfluidity in helium II

Journal Article · Sun Nov 01 00:00:00 EST 1987 · Int. J. Theor. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00669359· OSTI ID:5829640

Chela-Flores, J; Ghassib, H B

The analytic form of a wave propagating with a constant velocity and a permanent profile is inferred for a weakly interacting Bose gas, using an exact (rather than asymptotic) solution of the field equation of the self-consistent Hartree model. The significance of this approach is indicated, especially when realistic interatomic potentials are used. In addition, the general relation between solitons and Bose-Einstein condensation is underlined by invoking the profound insight recently acquired in studies of the quantum liquids involved in the living states. It is concluded that solitons may occur in He II, and may play a significant role in the phenomenon of superfluidity.

• Research Organization: International Center for Theoretical Physics, Trieste, Italy
• OSTI ID: 5829640
• Journal Information: Int. J. Theor. Phys.; (United States), Vol. 26:11
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HELIUM II
BOSE-EINSTEIN CONDENSATION
SOLITONS
SUPERFLUIDITY
BOSE-EINSTEIN GAS
BOSONS
FIELD EQUATIONS
GINZBURG-LANDAU THEORY
HARTREE-FOCK METHOD
INTERATOMIC FORCES
POTENTIALS
SELF-CONSISTENT FIELD
WAVE PROPAGATION
EQUATIONS
EVEN-EVEN NUCLEI
FLUIDS
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
QUANTUM FLUIDS
QUASI PARTICLES
STABLE ISOTOPES
640450* - Fluid Physics- Superfluidity