UCSB final report for the CSQ program: Review of decoherence and materials physics for superconducting qubits
read the original abstract
We review progress at UCSB on understanding the physics of decoherence in superconducting qubits. Although many decoherence mechanisms were studied and fixed in the last 5 years, the most important ones are two-level state defects in amorphous dielectrics, non-equilibrium quasiparticles generated from stray infrared light, and radiation to slotline modes. With improved design, the performance of integrated circuit transmons using the Xmon design are now close to world record performance: these devices have the advantage of retaining coherence when scaled up to 9 qubits.
This paper has not been read by Pith yet.
Forward citations
Cited by 2 Pith papers
-
Substrate insulated Josephson junctions for superconducting quantum circuits
A fabrication technique for Josephson junctions using 3D patterned low-loss substrate enables high-quality trilayer junctions from various materials without organic contaminants or intentional oxides.
-
Adaptive Sensing beyond Non-Adaptive Information Limits: End-to-End Co-Design of Geometry, Policy, and Inference
Joint dynamic programming co-optimizes continuous hardware geometry and Bellman-optimal adaptive policies, yielding large gains over baselines in radar POMDPs, qubit sensors, and 90k-pixel photonic metasensors.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.