Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Quantum Gases: Fermions III
Q 58.1: Vortrag
Freitag, 10. März 2017, 14:30–14:45, P 204
Spin chains of strongly interacting one-dimensional multicomponent gases — •Frank Deuretzbacher1, Daniel Becker2, Johannes Bjerlin3, Stephanie Reimann3, and Luis Santos1 — 1Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstrasse 2, 30167 Hannover — 2I. Institut für Theoretische Physik, Universität Hamburg, Jungiusstrasse 9, 20355 Hamburg — 3Mathematical Physics and NanoLund, LTH, Lund University, SE-22100 Lund, Sweden
Strongly interacting one-dimensional multicomponent gases form spin chains without the need for an optical lattice [1,2]. Such spin chains have been realized in Selim Jochim’s group in Heidelberg with few two-component fermions [3]. The spin configurations of the spin chains may be detected through tunneling measurements and measurements of the occupancies of the single-particle trap levels and of the momentum distributions [4]. Finally, we show that strongly interacting one-dimensional Bose-Fermi mixtures form tunable XXZ spin chains [5]. The various phases of the XXZ model may be realized by tuning the interactions between the bosons and the bosons and fermions independently.
[1] F. Deuretzbacher et al., Phys. Rev. Lett. 100, 160405 (2008)
[2] F. Deuretzbacher et al., Phys. Rev. A 90, 013611 (2014)
[3] S. Murmann et al., Phys. Rev. Lett. 115, 215301 (2015)
[4] F. Deuretzbacher et al., Phys. Rev. A 94, 023606 (2016)
[5] F. Deuretzbacher et al., arXiv:1611.04418 (2016)