Creation of collective many-body states and single photons from two-dimensional Rydberg lattice gases

Details Creation of collective many-body states and single photons from two-dimensional Rydberg lattice gases Creation of collective many-body states and single photons from two-dimensional Rydberg lattice gases

2011-02-10

arxiv.org/abs/1102.2150v1

Physics

Quantum Physics

12 pages, 8 figures

Scientific paper

The creation of collective many-body quantum states from a two-dimensional lattice gas of atoms is studied. Our approach relies on the van-der-Waals interaction that is present between alkali metal atoms when laser excited to high-lying Rydberg s-states. We focus on a regime in which the laser driving is strong compared to the interaction between Rydberg atoms. Here energetically low-lying many-particle states can be calculated approximately from a quadratic Hamiltonian. The potential usefulness of these states as a resource for the creation of deterministic single-photon sources is illustrated. The properties of these photon states are determined from the interplay between the particular geometry of the lattice and the interatomic spacing.

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