Supersolid Fermions Inside Harmonic Traps

F. Karim Pour, M. Rigol, S. Wessel and A. Muramatsu
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F. Karim Pour: Universität Stuttgart, Institut für Theoretische Physik III
M. Rigol: University of Southern California, Department of Physics and Astronomy
S. Wessel: Universität Stuttgart, Institut für Theoretische Physik III
A. Muramatsu: Universität Stuttgart, Institut für Theoretische Physik III

A chapter in High Performance Computing in Science and Engineering '08, 2009, pp 83-92 from Springer

Abstract: Summary We use quantum Monte Carlo simulations to study the properties of ultra-cold fermionic atoms on optical lattices when confined in one-dimensional harmonic trapping potentials. In particular, we analyze the case of attractive interactions by considering the attractive fermionic Hubbard model. We find that in the trapped case, the density-density and pairing correlations are characterized by the anomalous dimension of a corresponding periodic system. The fluctuations corresponding to these quantum critical behavior render the SU(2) symmetry breaking by the trapping potential irrelevant, and the system can establish a supersolid phase also inside a confined geometry.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-88303-6_7

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DOI: 10.1007/978-3-540-88303-6_7

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