Cascaded Four-Wave Mixing on Quantum Paraelectrics for On-chip Cryogenic Microcombs
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866913160270708736 |
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| author | Sundaresan, Harikrishnan Muragesh, Prasad Thalakulam, Madhu |
| author_facet | Sundaresan, Harikrishnan Muragesh, Prasad Thalakulam, Madhu |
| contents | Here, we demonstrate an on-chip cryogenic microwave frequency-comb on a planar superconducting resonator fabricated on Strontium titanate(STO), a quantum paraelectric material. The material's Kerr-type nonlinearity arising from the quantum paraelectric phase, an underexplored state, enables pronounced resonance shifts, Duffing-like bifurcations and comb generation via cascaded foure-wave mixing. Our results establish STO resonators as a low power, cryogenically compatible platforms for nonlinear microwave photonics, with applications in scalable quantum control and on-chip frequency synthesis. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_25112 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Cascaded Four-Wave Mixing on Quantum Paraelectrics for On-chip Cryogenic Microcombs Sundaresan, Harikrishnan Muragesh, Prasad Thalakulam, Madhu Mesoscale and Nanoscale Physics Optics Here, we demonstrate an on-chip cryogenic microwave frequency-comb on a planar superconducting resonator fabricated on Strontium titanate(STO), a quantum paraelectric material. The material's Kerr-type nonlinearity arising from the quantum paraelectric phase, an underexplored state, enables pronounced resonance shifts, Duffing-like bifurcations and comb generation via cascaded foure-wave mixing. Our results establish STO resonators as a low power, cryogenically compatible platforms for nonlinear microwave photonics, with applications in scalable quantum control and on-chip frequency synthesis. |
| title | Cascaded Four-Wave Mixing on Quantum Paraelectrics for On-chip Cryogenic Microcombs |
| topic | Mesoscale and Nanoscale Physics Optics |
| url | https://arxiv.org/abs/2605.25112 |