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Jena 2013 – scientific programme

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P: Fachverband Plasmaphysik

P 19: Poster: Theorie und Modellierung

P 19.6: Poster

Thursday, February 28, 2013, 14:00–16:00, Poster EG

Quantum breathing mode of charged fermions in a 2D harmonic trapChris McDonald1, G Orlando1, Jan Willem Abraham2, David Hochstuhl2, •Michael Bonitz2, and Thomas Brabec11Department of Physics, University of Ottawa, Canada — 2Institut für Theoretische Physik und Astrophysik, CAU Kiel, Leibnizstr. 15

The N-particle time-dependent Schrödinger equation is solved to investigate the quantum breathing mode of Coulomb-interacting fermions confined in two-dimensional quantum dots. [1] The Multi-Configurational Time-Dependent Hartree-Fock method allows us to obtain the mode frequencies for up to 6 particles in the whole range of coupling parameters, from the ideal quantum gas to Wigner crystallization. Furthermore, a new approximate analytical approach to the quantum breathing mode is presented and shows very good agreement with the simulations.

[1] C. McDonald et al., submitted to Phys. Rev. Lett. (2012)

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