Hannover 2010 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 38: Quantum Gases: Bosons III / Lattices I
Q 38.4: Vortrag
Mittwoch, 10. März 2010, 17:15–17:30, E 001
Measuring atomic correlations via photon counting — •Stefan Rist1,2 and Giovanna Morigi1 — 1Theoretische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany — 2Departament de Fisica, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Spain
A scheme is presented, which allows one for measuring the quantum state of an ultracold atomic gas by means of the first-order coherence of light, which interacts dispersively with the gas. The scheme is based on an interferometric-like setup, and allows one for determining, amongst others, the single-particle correlation function, as well as correlations between atomic field and density. The results are evaluated for ultracold atoms in one- and two-dimensional optical lattices, across the superfluid / Mott-insulator transition.