249 citations · 390 across the 10 of their papers we have counts for
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Lifetime and Emission Characteristics of Electronic Excitations in 2D Optical Lattices
Hashem Zoubi, Helmut Ritsch
Collective electronic excitations "excitons" in planar optical lattices exhibit strong modifications of the radiative damping rate and directional emission pattern as compared to a…
Superradiant and Dark Exciton States in an Optical Lattice within a Cavity
Hashem Zoubi, Helmut Ritsch
We study ultracold atoms in a finite size one-dimensional optical lattice prepared in the Mott insulator phase and commonly coupled to a single cavity mode. Due to resonance dipole…
Quantum Phases of Ultracold Bosonic Atoms in two Bands of an Optical-Lattice coupled by a Cavity Field
Hashem Zoubi, Helmut Ritsch
We study the quantum phase transitions between superfluid and Mott insulator states for ultracold bosons occupying two bands of an optical lattice. The two atomic states are resona…
Polarization-Mixing in Optical Lattices with Uniaxial Anisotropy
Hashem Zoubi, Helmut Ritsch
We study optical excitations of an ultracold gas in an optical lattice in the Mott insulator case and with anisotropic properties. The anisotropy is induced by an oriented transiti…
Coupling of Electronic and Motional Dynamics in a Cold Atom Optical Lattice
Hashem Zoubi, Helmut Ritsch
We study the coupling of internal electronic excitations to vibrational modes of the external motion of ultracold atoms in an optical lattice. For different ground and excited stat…
Excitons and cavity polaritons for ultracold atoms in an optical lattice
Hashem Zoubi, Helmut Ritsch
We study the resonant electronic excitation dynamics for ultracold atoms trapped in a deep optical lattice prepared in a Mott insulator state. Excitons in these artificial crystals…