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Waveguide QED: Many-body bound-state effects in coherent and Fock-state scattering from a two-level system

Open access
Zheng, Huaixiu, Gauthier, Daniel J., Baranger, Harold U.·2010·Physical Review A

Abstract

Strong coupling between a two-level system (TLS) and bosonic modes produces dramatic quantum optics effects. We consider a one-dimensional continuum of bosons coupled to a single localized TLS, a system which may be realized in a variety of plasmonic, photonic, or electronic contexts. We present the exact many-body scattering eigenstate obtained by imposing open boundary conditions. Multiphoton bound states appear in the scattering of two or more photons due to the coupling between the photons and the TLS. Such bound states are shown to have a large effect on scattering of both Fock- and coherent-state wave packets, especially in the intermediate coupling-strength regime. We compare the statistics of the transmitted light with a coherent state having the same mean photon number: as the interaction strength increases, the one-photon probability is suppressed rapidly, and the two- and three-photon probabilities are greatly enhanced due to the many-body bound states. This results in non-Poissonian light.

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Metadata

Authors
Zheng, H., Gauthier, D. J., & Baranger, H. U.
Venue
Physical Review A
Published
2010-12-14
Volume
82
Issue
6
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
OpenAlex
W2110353251
Cited by
223
References
2
FWCI
5.86
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Waveguide QED: Many-body bound-state effects in coherent and Fock-state scattering from a two-level system. https://app.cochat.ai/papers/10.1103/physreva.82.063816
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Zheng, H., Gauthier, D. J., & Baranger, H. U. (2010). Waveguide QED: Many-body bound-state effects in coherent and Fock-state scattering from a two-level system. Physical Review A. https://doi.org/10.1103/physreva.82.063816

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