TY - JOUR
T1 - A Parrinello-Rahman approach to vortex lattices
AU - Carretero-González, R.
AU - Kevrekidis, P. G.
AU - Kevrekidis, I. G.
AU - Maroudas, D.
AU - Frantzeskakis, D. J.
N1 - Funding Information:
This work was supported by NSF-DMS-0204585, NSF-CAREER and the Eppley Foundation for Research (P.G.K.), AFOSR and NSF/ITR (I.G.K.), NSF/ITR grant CTS-0205584 (D.M.), and the SDSU Foundation (R.C.G.).
PY - 2005/6/20
Y1 - 2005/6/20
N2 - 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.
AB - 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.
KW - Bose-Einstein condensation
KW - Molecular dynamics
KW - Parrinello-Rahman
KW - Vortex lattices
KW - Vortices
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U2 - 10.1016/j.physleta.2005.04.046
DO - 10.1016/j.physleta.2005.04.046
M3 - Article
AN - SCOPUS:20444413055
SN - 0375-9601
VL - 341
SP - 128
EP - 134
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 1-4
ER -