Ultrastrong Coupling Few-Photon Scattering Theory.
Ultrastrong Coupling Few-Photon Scattering Theory.
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DOI:
10.1103/physrevlett.120.153602
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发表时间:
2017-01
影响因子:
8.6
通讯作者:
T. Shi;Yue Chang;J. García-Ripoll
中科院分区:
文献类型:
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作者:
T. Shi;Yue Chang;J. García-Ripoll
We study the scattering of individual photons by a two-level system ultrastrongly coupled to a waveguide. The scattering is elastic for a broad range of couplings and can be described with an effective U(1)-symmetric Hamiltonian. This simple model allows the prediction of scattering resonance line shapes, validated up to α=0.3, and close to the Toulouse point α=1/2, where inelastic scattering becomes relevant. Our predictions model experiments with superconducting circuits [P. Forn-Díaz et al., Nat. Phys. 13, 39 (2017)NPAHAX1745-247310.1038/nphys3905] and can be extended to study multiphoton scattering.