Dresden 2006 – wissenschaftliches Programm
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DY: Dynamik und Statistische Physik
DY 22: Quantum Dynamics II
DY 22.7: Vortrag
Dienstag, 28. März 2006, 12:30–12:45, H\"UL 186
Effective quantum potentials — •C. Olbrich1 and K. Morawetz1,2 — 1Institute of Physics, Chemnitz University of Technology, 09107 Chemnitz, Germany — 2Max-Planck-Institute for the Physics of Complex Systems, Nöthnitzer Str. 38, 01187 Dresden, Germany
An exact correspondence is established between a N-body classical interacting system and a N−1-body quantum system with respect to the partition function [1]. The resulting hermitian quantum-potential is a N−1-body one. Inversely the Kelbg potential is reproduced which describes quantum systems at a quasi-classical level. Such quantum potential allows to simulate quantum effects within the classical moleculardynamics reproducing the quantum correlation energy. We present a simple procedure to construct such effective quantum potentials for any temperature and density and present simulation results for the conductivity in quasi two-dimensional systems.
[1] K. Morawetz; Phys. Rev. E 66 (2001) 022103