Published September 1996
| Version v1
Journal article
Vortex Excitation in Superfluid 4He: A Diffusion Monte Carlo Study
- 1. Departament de Fisica i Enginyeria Nuclear, Campus Nord B4-B5, Universitat Politecnica de Catalunya, E-08028 Barcelona (Spain)
- 2. Istituto Nazionale di Fisica della Materia, I-38050 Povo (Italy)
- 3. Dipartimento di Fisica, Universita di Trento, I-38050 Povo (Italy)
Description
We present a diffusion Monte Carlo study of a single vortex in two-dimensional superfluid liquid 4He 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 1996 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 77
- Journal Issue
- 13
- Journal Page Range
- p. 2754-2757.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28011710
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- DENSITY; DIFFUSION; EXCITATION; HELIUM 4; MONTE CARLO METHOD; SUPERFLUIDITY; VORTICES; WAVE FUNCTIONS
- Descriptors DEC
- CALCULATION METHODS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; FUNCTIONS; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; NUCLEI; PHYSICAL PROPERTIES; STABLE ISOTOPES