Frequency combs with parity-protected cross-correlations from dynamically modulated qubit arrays

Abstract

We develop a general theoretical framework to dynamically engineer quantum correlations in the frequency-comb emission from an array of superconducting qubits in a waveguide, rigorously accounting for the temporal modulation of the qubit resonance frequencies. We demonstrate, that when the resonance frequencies of the two qubits are periodically modulated with a $\pi$ phase shift, it is possible to realize simultaneous bunching and antibunching in cross-correlations of the scattered photons from different sidebands. Our approach, based on the dynamical conversion between the quantum excitations with different parity symmetry, is quite universal. It can be used to control two-particle correlations in generic dynamically modulated dissipative quantum systems.

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• Resonant Parametric Photon Generation in Waveguide-coupled Quantum Emitter Arrays
• Precision of the acoustic control of single photon scattering with semiconductor quantum dots
• Controlling correlations of a polaritonic Luttinger liquid by engineered cross-Kerr nonlinearity