EpiQ- Epitaxial approaches for materials enhancements of superconducting qubits
Abstract
The EpiQ team (=EpiQ) will identify and eliminate defects with innovative epitaxial approaches to demonstrate superconducting qubits with coherence to the millisecond timescale via multiple full loops over 4 years. EpiQ will use high temperature MBE techniques to create near-perfect substrates, interfaces, and Josephson junctions (JJs), bringing an advanced materials platform to quantum superconducting devices. MBE s ability to purposely produce films layer-by-layer and suppress non-stoichiometric bonds through high-temperature growth makes it an ideal candidate for studying material qubit performance correlations. It also has its own challenges, including interfacial atomic diffusion, defect migration, and microscopic phase separation. Using materials theory, EpiQ will correlate qubit metrics with nonidealities at junctions and interfaces and the effect of dislocations, grain boundaries, and interface roughness. EpiQ will specifically use epitaxy to uncover correlations between materials characterization metrics and qubit performance metrics in three materials regions.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 14, 2024
- Source ID
- FA95502310688
Entities
People
- Debdeep Jena
Organizations
- Air Force Office of Scientific Research
- Cornell University
- United States Air Force