title: Preparation of entangled and antiferromagnetic states by dissipative Rydberg pumping.
abstract: We propose and analyze an approach for preparation of high fidelity entanglement and antiferromagnetic states using Rydberg mediated interactions with dissipation. Using asymmetric Rydberg interactions the two-atom Bell singlet is a dark state of the Rydberg pumping process. Master equation simulations demonstrate Bell singlet preparation fidelity F=0.998. Antiferromagnetic states are generated on a four-spin plaquette in agreement with results found from diagonalization of the transverse field Ising Hamiltonian.
authors.affiliation: Department of Physics, 1150 University Avenue, University of Wisconsin, Madison, Wisconsin 53706, USA.
authors.forename: A W
authors.initials: AW
authors.lastname: Carr
authors.forename: M
authors.initials: M
authors.lastname: Saffman