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

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.063816· OSTI ID:21528976

Huaixiu, Zheng; Baranger, Harold U ^[1]; Gauthier, Daniel J ^[1]

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1. Department of Physics, Duke University, P.O. Box 90305, Durham, North Carolina 27708 (United States)

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.

• OSTI ID: 21528976
• Journal Information: Physical Review. A, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevA.82.063816; (c) 2010 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOUND STATE
BOUNDARY CONDITIONS
COMPARATIVE EVALUATIONS
INTERMEDIATE COUPLING
LIGHT TRANSMISSION
MANY-BODY PROBLEM
MULTI-PHOTON PROCESSES
ONE-DIMENSIONAL CALCULATIONS
OPTICS
PHOTONS
PROBABILITY
QUANTUM ELECTRODYNAMICS
STATISTICS
STRONG-COUPLING MODEL
WAVE PACKETS
WAVEGUIDES
BOSONS
COUPLING
ELECTRODYNAMICS
ELEMENTARY PARTICLES
EVALUATION
FIELD THEORIES
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATHEMATICS
PARTICLE MODELS
QUANTUM FIELD THEORY
TRANSMISSION