Cryogenic Integrated Photonics
An outstanding challenge in quantum information science and networking is the ability to interconnect multiple types of quantum systems, which is often difficult due to the large disparity in operating environments and qubit frequencies. Our research explores novel approaches to interconnects and transduction, including high-speed electro-optical modulators driven by microwave-frequency superconducting circuits, quantum optical frequency conversion spanning several octaves, and quantum acoustic cavities for microwave-to-optical quantum transduction between quantum mechanical acoustic modes and single photons produced by individual quantum emitters. These technologies have the potential for transformative impact in several areas, including interfacing multiple emerging quantum systems and devices and serving as an essential component of the co-design of quantum and classical networks for secure communications and distributed computing.
Current projects in the QPL include:
- Photonic interconnects for cryogenic superconducting qubits (led by Pintus at Cagliari / UCSB, collaboration with Google)
- InAs quantum dot nanophotonics and optomechanics (collaboration with Krenner group at Meunster and Bowers group at UCSB)
- Site-controlled single-photon emitters in 2D materials (collaboration with Htoon group at LANL and Van de Walle group at UCSB)
- Integrated photonic and optomechanical integration of 2D quantum emitters
