title: Strongly correlated two-photon transport in a one-dimensional waveguide coupled to a two-level system.
abstract: We show that two-photon transport is strongly correlated in one-dimensional waveguide coupled to a two-level system. The exact S matrix is constructed using a generalized Bethe-ansatz technique. We show that the scattering eigenstates of this system include a two-photon bound state that passes through the two-level system as a composite single particle. Also, the two-level system can induce effective attractive or repulsive interactions in space for photons. This general procedure can be applied to the Anderson model as well.
authors.affiliation: Ginzton Laboratory, Stanford University, Stanford, California 94305, USA.
authors.forename: Jung-Tsung
authors.initials: JT
authors.lastname: Shen
authors.forename: Shanhui
authors.initials: S
authors.lastname: Fan