Static response functions in superfluid [sup 4]He

Conference · Thu Oct 01 04:00:00 EDT 1992 · Journal of Low Temperature Physics; (United States)

OSTI ID:7011324

Dalfovo, F; Stringari, S ^[1]

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1. Univ. di Trento (Italy) INFN, Trento (Italy)

Rigorous lower and upper bounds for the static response function in superfluid [sup 4]He at zero temperature are derived using a sum rule approach. The ingredients needed to calculate the bounds are taken from recent Monte Carlo simulations for the ground state. The new bounds improve significantly the Feynman approximation and provide estimates of the static response function in agreement with the experimental data at zero pressure.

• OSTI ID: 7011324
• Report Number(s): CONF-9206305--Pt.1
• Conference Information: Journal Name: Journal of Low Temperature Physics; (United States) Journal Volume: 89:1-2
• Country of Publication: United States
• Language: English

Related Subjects

665420* -- Superfluidity-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOUNDARY-VALUE PROBLEMS
ENERGY LEVELS
EQUATIONS
EVEN-EVEN NUCLEI
FLUIDS
FUNCTIONS
GROUND STATES
HELIUM 4
HELIUM II
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MONTE CARLO METHOD
NUCLEI
QUANTUM FLUIDS
RESPONSE FUNCTIONS
SIMULATION
STABLE ISOTOPES
SUM RULES
SUPERFLUIDITY