symmetric phase transition and single-photon transmission in an optical trimmer system
arXiv:1612.06959 · doi:10.1364/OE.25.017249
Abstract
The parity-time () symmetric structures have exhibited potential applications in developing various robust quantum devices. In an optical trimmer with balanced loss and gain, we analytically study the symmetric phase transition by investigating the spontaneous symmetric breaking. We also illustrate the single-photon transmission behaviors in both of the symmetric and symmetry broken phases. We find (i) the non-periodical dynamics of single-photon transmission in the symmetry broken phase instead of symmetric phase can be regarded as a signature of phase transition; and (ii) it shows unidirectional single-photon transmission behavior in both of the phases but comes from different underlying physical mechanisms. The obtained results may be useful to implement the photonic devices based on coupled-cavity system.
arXiv comment6 Pages, 4 figures, All the comments are welcomed
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- Manipulating spectral transitions and photonic transmission in a non-Hermitian optical system through nanoparticle perturbations