Macroscopic quantum tunneling of vortices in He II

Journal Article · Mon Feb 15 04:00:00 EST 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.60.604· OSTI ID:5464129

Hendry, P C; Lawson, N S; McClintock, P V.E.; Williams, C D.H.; Bowley, R M

Experimental evidence is presented showing that the creation of vortices in He II involves macroscopic quantum tunneling through, or thermal activation over, a potential-energy barrier epsilon. The investigations, based on measurements of the rate at which negative ions create vortex rings in the isotopically pure superfluid within the temperature range 50

• Research Organization: Department of Physics, University of Lancaster, Lancaster LA1chemically bond4YB, United Kingdom
• OSTI ID: 5464129
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 60:7; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTIVATION ENERGY
ENERGY
EVEN-EVEN NUCLEI
FLUID MECHANICS
FLUIDS
HELIUM 4
HELIUM II
HELIUM ISOTOPES
HYDRODYNAMICS
ISOTOPES
LIGHT NUCLEI
MECHANICS
NUCLEI
PHYSICAL PROPERTIES
POTENTIAL ENERGY
QUANTUM FLUIDS
QUANTUM MECHANICS
STABLE ISOTOPES
THERMODYNAMIC PROPERTIES
TUNNEL EFFECT
VORTICES