Qubit ZooPhotonic Qubit is a photonic qubit approach for quantum computing hardware. Source: latex text.
Abstract
Frequency encoded photonic qubits promise a scalable path towards high-dimensional quantum information processing, but require efficient components for coherently mixing frequency modes. Coupled cavity modulators provide this functionality by using only a single driving microwave tone to couple hybridized optical supermodes. Here, we demonstrate a heterogeneously integrated thin-film lithium-niobate-on-silicon coupled-cavity modulator that realizes tunable bidirectional frequency mode transformations, including (50/50) beam splitting and near complete frequency swapping with (>20~\mathrm{dB}) pump extinction at a (10~\mathrm{GHz}) supermode splitting. Because the electro-optic film is bonded onto a foundry fabricated silicon photonics platform, the approach is compatible with co-integration of photon pair sources, spectral filters, active tuning elements, and single photon detectors. We also bond thin-film lithium tantalate onto the same coupled-cavity platform, demonstrating material flexibility for scalable integrated frequency bin quantum photonic circuits.
Key Findings
Links
- arXiv: 2608.26028
Verification Report
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