Abstract
We present a framework for studying vortex lattice patterns and their structural transitions, using the Parrinello-Rahman (PR) method for molecular-dynamics (MD) simulations. Assuming an interaction between vortices derived from a Ginzburg-Landau field-theoretic context, we extract the ground-state of a "vortex gas" using the PR-MD technique and find it to be a triangular pattern. Other patterns are also obtained for special initial conditions. Generalizations of the technique, such as the inclusion of external potentials or excitation of quadrupolar modes, are also commented upon.
Original language | English (US) |
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Pages (from-to) | 128-134 |
Number of pages | 7 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 341 |
Issue number | 1-4 |
DOIs | |
State | Published - Jun 20 2005 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
Keywords
- Bose-Einstein condensation
- Molecular dynamics
- Parrinello-Rahman
- Vortex lattices
- Vortices