Hamburg 2009 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 30: Poster II
Q 30.11: Poster
Dienstag, 3. März 2009, 16:30–19:00, VMP 9 Poster
Non-Abelian gauge field induced phase fluctuations in low-dimensional quantum gases — •Frank Zimmer1, Andreas Jacob2, Michael Merkl1, Luis Santos2, and Patrik Öhberg1 — 1SUPA, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, United Kingdom — 2Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstr. 2, D-30167, Hannover, Germany
Phase fluctuations of ultra-cold quantum gases have been intensively investigated in recent years mainly because of their implications on applications such as matter wave interferometers, chip-based wave guides or atom laser beams. In addition their occurrence can also be used for more fundamental applications such a thermometry.
In this work we study a spinor gas subject to an optically induced non-Abelian gauge potential, and its influence on the low-energy elementary excitations. Based on this we discuss for different spatial dimensions their impact on the observable phase fluctuations.