https://doi.org/10.1140/epjp/s13360-022-03284-4
Regular Article
Multiple electromagnetically induced transparency without a control field in an atomic array coupled to a waveguide
School of Physical Science and Technology, Southwest Jiaotong University, 610031, Chengdu, China
Received:
30
July
2022
Accepted:
14
September
2022
Published online:
26
September
2022
We investigate multiple electromagnetically induced transparency (EIT) in a waveguide quantum electrodynamics (wQED) system containing an atom array. By analyzing the effective Hamiltonian of the system, we find that in terms of the single-excitation collective states, a properly designed N-atom array can be mapped into a driven (
)-level system that can produce multiple EIT-type phenomenon. The corresponding scattering spectra of the atom-array wQED system are discussed both in the single-photon sector and beyond the single-photon limit. The most significant feather of this type of EIT scheme is control-field-free, which may provide an alternative way to produce EIT-like phenomenon in wQED system when external control fields are not available. The results given in our paper may provide good guidance for future experiments on multiple EIT without a control field in wQED system.
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