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arXiv · 2106.08526

Giant Enhancement of Unconventional Photon Blockade in a Dimer Chain

You Wang·W. Verstraelen·Baile Zhang·Timothy C. H. Liew·Y. D. Chong
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Abstract

Unconventional photon blockade refers to the suppression of multi-photon states in weakly nonlinear optical resonators via the destructive interference of different excitation pathways. It has been studied in a pair of coupled nonlinear resonators and other few-mode systems. Here, we show that unconventional photon blockade can be greatly enhanced in a chain of coupled resonators. Specifically, the strength of the nonlinearity in each resonator needed to achieve unconventional photon blockade is suppressed exponentially with lattice size. The analytic derivation, based on a weak drive approximation, is validated by wavefunction Monte Carlo simulations. These findings show that customized lattices of coupled resonators can be powerful tools for controlling multi-photon quantum states.

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You Wang, W. Verstraelen, Baile Zhang, Timothy C. H. Liew, Y. D. Chong. 2021-06-16. Giant Enhancement of Unconventional Photon Blockade in a Dimer Chain. https://doi.org/10.1103/physrevlett.127.240402

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