Photon blockade with ground-state neutral atoms.
CIDRIM, André; ESPIRITO SANTO, Tiago Santiago do; SCHACHENMAYER, J.; KAISER, Robin; BACHELARD, Romain.
CIDRIM, André; ESPIRITO SANTO, Tiago Santiago do; SCHACHENMAYER, J.; KAISER, Robin; BACHELARD, Romain.
Abstract: We show that induced dipole-dipole interactions allow for photon blockade in subwavelength ensembles of two-level, ground-state neutral atoms. Our protocol relies on the energy shift of the single-excitation, superradiant state of N atoms, which can be engineered to yield an effective two-level system. A coherent pump induces Rabi oscillation between the ground state and a collective bright state, with at most a single excitation shared among all atoms. The possibility of using clock transitions that are long-lived and relatively robust against stray fields, alongside new prospects on experiments with subwavelength lattices, makes our proposal a promising alternative for quantum information protocols.
@article={003003984,author = {CIDRIM, André; ESPIRITO SANTO, Tiago Santiago do; SCHACHENMAYER, J.; KAISER, Robin; BACHELARD, Romain.},title={Photon blockade with ground-state neutral atoms},journal={Physical Review Letters},note={v. 125, n. 7, p. 073601-073601-6},year={2020}}