Vortex Excitation in Superfluid {sup 4}He: A Diffusion Monte Carlo Study

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.2754· OSTI ID:385748

Giorgini, S; Boronat, J; Casulleras, J ^[1]

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1. Dipartimento di Fisica, Universita di Trento, I-38050 Povo (Italy)

We present a diffusion Monte Carlo study of a single vortex in two-dimensional superfluid liquid {sup 4}He within the fixed-node approximation. We use both the Feynman phase and an improved phase which includes backflow correlations to model the nodal surface of the vortex wave function. Results for the particle density, core radius, and excitation energies are presented. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 385748
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DENSITY
DIFFUSION
EXCITATION
HELIUM 4
MONTE CARLO METHOD
SUPERFLUIDITY
VORTICES
WAVE FUNCTIONS