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Protected state enhanced quantum metrology with interacting two-level ensembles
Laurin Ostermann, Helmut Ritsch, Claudiu Genes
Ramsey interferometry is routinely used in quantum metrology for the most sensitive measurements of optical clock frequencies. Spontaneous decay to the electromagnetic vacuum ultim…
Seeding patterns for self-organization of photons and atoms
Wolfgang Niedenzu, Stefan Schütz, Hessam Habibian +2
When atoms scatter photons from a transverse laser into a high-finesse optical cavity, they form crystalline structures which maximize the intracavity light field and trap the atom…
Light induced crystallization of cold atoms in a thin 1D optical tube
Tobias Grießer, Helmut Ritsch
Collective off resonant scattering of coherent light by a cold gas induces long-range interactions via interference of light scattered by different particles. In a 1D configuration…
Excitons and Cavity Polaritons for Optical Lattice Ultracold Atoms
Hashem Zoubi, Helmut Ritsch
Ultracold atoms uniformly filling an optical lattice can be treated like an artificial crystal. An implementation including the atomic occupation of a single excited atomic state c…