aiqbench analysis
This research details a non-perturbative framework for generating squeezed light using coupled microring resonators, specifically addressing noise suppression and signal enhancement through field interference. By leveraging hybridization effects between auxiliary and primary resonators, the study achieves near-unit fidelity in degenerate squeezing schemes while mitigating parasitic four-wave mixing processes. The work advances photonic quantum hardware design by optimizing resonance spectra for high-fidelity quantum state generation.
Squeezing Enhancement Through Resonant Interference in Multi-ring Resonators
arXiv:2605.10731v2 Announce Type: replace Abstract: We develop a non-perturbative description of squeezed light generation in an arbitrary lossy structure consisting of multiple coupled microring resonators. This is applied to two ring photonic molecules where the interference of the fields in the coupled rings leads to a modification in the resonance spectrum near a shared resonance. Considering a dual-pump degenerate squeezing scheme under a five resonance approximation, we investigate two methods to suppress parasitic four-wave mixing contributions and compensate for group velocity dispersion within a primary resonator through hybridization effects with a second auxiliary resonator. In the former case, this comes from an effective splitting of the unwanted resonances supporting parasitic four-wave mixing interactions that add thermal noise to the desired degenerate squeezed state. For sufficiently strong coupling between the resonators, we demonstrate near complete suppression of such parasitic processes, resulting in near unit fidelities with the corresponding output state that would arise were the parasitic interactions neglected. In the latter case, the hybridization effectively shifts a pump resonance, realigning the desired dual-pump four-wave mixing process and leading to a significant enhancement of the signal generation and output squeezing.
Abstract:We develop a non-perturbative description of squeezed light generation in an arbitrary lossy structure consisting of multiple coupled microring resonators. This is applied to two ring photonic molecules where the interference of the fields in the coupled rings leads to a modification in the resonance spectrum near a shared resonance. Considering a dual-pump degenerate squeezing scheme under a five resonance approximation, we investigate two methods to suppress parasitic four-wave mixing contributions and compensate for group velocity dispersion within a primary resonator through hybridization effects with a second auxiliary resonator. In the former case, this comes from an effective splitting of the unwanted resonances supporting parasitic four-wave mixing interactions that add thermal noise to the desired degenerate squeezed state. For sufficiently strong coupling between the resonators, we demonstrate near complete suppression of such parasitic processes, resulting in near unit fidelities with the corresponding output state that would arise were the parasitic interactions neglected. In the latter case, the hybridization effectively shifts a pump resonance, realigning the desired dual-pump four-wave mixing process and leading to a significant enhancement of the signal generation and output squeezing.
Quantum Physics (quant-ph); Optics (physics.optics)
arXiv:2605.10731 [quant-ph]
(or arXiv:2605.10731v2 [quant-ph] for this version)
https://doi.org/10.48550/arXiv.2605.10731 Focus to learn more arXiv-issued DOI via DataCite
https://doi.org/10.1103/zd75-m4bn Focus to learn more DOI(s) linking to related resources
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Full text under the publisher's open licence · 287 words
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