Events on Wednesday, April 23rd, 2025
- R. G. Herb Condensed Matter Seminar
- Creating hybrid quantum technologies with integrated diamond membranes
- Time: 10:00 am - 6:00 pm
- Place: 5310 Chamberlin Hall
- Speaker: Alex High , University of Chicago
- Abstract: In this seminar, I will introduce how we create diamond membranes with unprecedented quality and integrate them into hybrid quantum and electronic technologies. Diamond has exceptional material properties as a host for qubits yet presents myriad challenges for integration and scalable manufacturing. The continued evolution of quantum and electronic technologies in diamond requires heterogenous material platforms for sophisticated functionalities, device integration and packaging, and improved performance. At UChicago and Argonne National Laboratory, we are creating pristine single-crystal diamond membranes that host coherent color center qubits and integrating them with a wide range of materials including silicon, fused silica, sapphire, thermal oxide, lithium niobate, tantalum, and YIG. The membrane uniformity and robustness to fabrication allows us to create state-of-the-art technologies - such as integrated photonics with record performance, multi-functional quantum sensing platforms, and quantum networking interfaces that operate at 4 Kelvin instead of resource-intensive dilution fridge temperatures. I will also demonstrate how diamond color centers can operate as high-performance optical antennas to manipulate and study their proximal environment.
- Host: Tiancheng Song