A Compact Monolithic Electro-Optic Package for Quantum Microwave-to-Optical Transduction

Conference · Mon Mar 23 00:00:00 EDT 2026 · No journal information

DOI:https://doi.org/10.2172/3024626· OSTI ID:3024626

Reineri, Alessandro ^[1]; Zorzetti, Silvia ^[1]; Wang, Chagqing ^[1]; Delgado, Julian ^[1]

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1. Fermilab

We present a novel quantum transduction package that integrates a macroscopic electro-optic crystal into a compact, monolithic assembly designed for superconducting quantum processors. The device provides an efficient and scalable interface between microwave and optical domains while preserving cryogenic compatibility. We performed full-wave and quantum dynamical simulations to assess the performance of the hybrid system, focusing on the interaction between a transmon-based microwave cavity and the crystal’s and cavity low-frequency microwave mode. The transmon operates both as an ancilla for the QPU and as a nonlinear element enabling four-wave mixing between cavity and electro-optic crystal microwave fields. Our results indicate that this architecture can coherently mediate quantum information transfer from the cavity to the electro-optic mode, offering a promising platform for on-chip quantum transduction within superconducting quantum networks.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: 89243024CSC000002
• OSTI ID: 3024626
• Report Number(s): FERMILAB-SLIDES-26-0047-SQMS; oai:inspirehep.net:3132737
• Resource Type: Conference presentation
• Conference Information: Journal Name: No journal information
• Country of Publication: United States
• Language: English