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arXiv · 0903.1993

Quantum breathing mode of trapped bosons and fermions at arbitrary coupling

S. Bauch·K. Balzer·C. Henning·M. Bonitz
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Abstract

An analysis of the quantum breathing behavior of few-particle Coulomb systems in one- and two-dimensional harmonic traps is presented. We report the existence of \emph{two independent breathing modes} and present exact numerical results for two particles at any coupling strength which smoothly connect the two known limits of an \emph {ideal} quantum and a strongly coupled \emph {classical} system. Substantial differences in the breathing frequency of two-dimensional fermions and bosons are observed which may be used as a sensitive experimental tool to probe confined interacting quantum systems.

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S. Bauch, K. Balzer, C. Henning, M. Bonitz. 2009-03-11. Quantum breathing mode of trapped bosons and fermions at arbitrary coupling. https://doi.org/10.1103/physrevb.80.054515

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