Physics – Quantum Physics
Scientific paper
2007-01-23
Phys. Rev. Lett. 98, 153003 (2007)
Physics
Quantum Physics
12 pages. 3 figures. Accepted by Physical Review Letters
Scientific paper
10.1103/PhysRevLett.98.153003
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.
Fan Shanhui
Shen Jung-Tsung
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