Abstract
We study theoretically the second-order correlation function for photons transmitted through a periodic Bragg-spaced array of superconducting qubits, coupled to a waveguide. We demonstrate that photon bunching and antibunching persist much longer than both radiative and nonradiative lifetimes of a single qubit. Due to the Borrmann effect, that is a strongly non-Markovian collective feature of light-qubit coupling inherent to the Bragg regime, the photon-photon correlations become immune to nonradiative dissipation. This persistence of quantum correlations opens new avenues for enhancing the performance of setups of waveguide quantum electrodynamics.
2 More- Received 2 October 2020
- Revised 22 January 2021
- Accepted 7 April 2021
DOI:https://doi.org/10.1103/PhysRevA.103.043718
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