Yadav P. Kandel

Abstract Surface acoustic waves (SAW) and associated devices are ideal for sensing, metrology, and hybrid quantum devices. While the advances demonstrated to date are largely based on electromechanical coupling, a robust and customizable coherent optical coupling would unlock mature and powerful cavity optomechanical control techniques and an efficient optical pathway for long-distance quantum links.

Because of their small size, low loss, and compatibility with magnetic fields, and elevated temperatures, surface acoustic wave (SAW) resonators hold significant potential as future quantum interconnects. Here, we design, fabricate, and characterize gigahertz-frequency SAW resonators with the potential for strong capacitive coupling to nanoscale solid-state quantum systems, including semiconductor quantum dots.

Abstract Quantum information science has the potential to revolutionize modern technology by providing resource-efficient approaches to computing1, communication2 and sensing3. Although the physical qubits in a realistic quantum device will inevitably suffer errors, quantum error correction creates a path to fault-tolerant quantum information processing4. Quantum error correction, however, requires that individual qubits can interact with many other qubits in the processor.