Material interfaces and defects in superconducting qubits- a first-principles closed loop approach
Abstract
There is global competition Quantum information, computing, and science because of its impact on our economy and national security. To break the Advanced Encryption Standard would take an estimated billion years for a traditional computer to decode but a quantum computer could do this a fraction of the time and quantum sensors can detect object at much greater depths such as submarines or oil reservoirs. Josephson junction based transmon superconducting circuit architectures are one of the leading candidates for quantum computing and communication. This is primarily due to the different configurations of Josephon junctions that can be used to design qubits. These devices consist of several layers of semiconducting, dielectric, and superconducting materials with significant lattice mismatch at interfaces, leading to large strain fields. These large strain fields produced imperfections in the material producing flaws known as two level system (TLS) defects in the superconductor film, which is the main contributor to losses that limit the fidelity of these devices.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 14, 2024
- Source ID
- FA95502310709
Entities
People
- William Shelton
Organizations
- Air Force Office of Scientific Research
- Louisiana State University System
- United States Air Force