TY - JOUR TI - A Parrinello-Rahman approach to vortex lattices AU - Carretero-Gonzalez, R AU - Kevrekidis, PG AU - Kevrekidis, IG and AU - Maroudas, D AU - Frantzeskakis, DJ JO - MODERN PHYSICS LETTERS A PY - 2005 VL - 341 TODO - 1-4 SP - 128-134 PB - Elsevier SN - 0217-7323 TODO - 10.1016/j.physleta.2005.04.046 TODO - vortices; molecular dynamics; Parrinello-Rahman; vortex lattices; Bose-Einstein condensation TODO - 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. (c) 2005 Elsevier B.V. All rights reserved. ER -