Frankfurt 2006 – wissenschaftliches Programm

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Q: Quantenoptik und Photonik

Q 30: Poster Stark korrelierte Systeme

Q 30.1: Poster

Dienstag, 14. März 2006, 16:30–18:30, Labsaal

Noise-induced quantum phase transitions in optical lattices — •Maria Eckholt, Juan Jose Garcia-Ripoll, and Ignacio Cirac — Max-Planck-Institut für Quantenoptik, Hans-Kopfermann Str. 1, 85748 Garching, Germany

We study the quantum phase transitions in ultracold atoms subjected to a noisy environment. The system is modeled by the Bose-Hubbard Hamiltonian, where periodic boundary conditions are considered. The study is based on the master-equation formalism and we apply different numerical techniques to estimate the phases of the atoms. Experimental realizations for different types of noise are also considered.