Affiliation:
1. Yale University
2. Jülich Aachen Research Alliance
Abstract
Extending the qubit coherence times is a crucial task in building quantum information processing devices. In the three-dimensional cavity implementations of circuit QED, the coherence of superconducting qubits was improved dramatically due to cutting the losses associated with the photon emission. Next frontier in improving the coherence includes the mitigation of the adverse effects of superconducting quasiparticles. In these lectures, we review the basics of the quasiparticles dynamics, their interaction with the qubit degree of freedom, their contribution to the qubit relaxation rates, and approaches to control their effect.
Funder
Alexander von Humboldt-Stiftung
Army Research Office
United States Department of Energy
Cited by
36 articles.
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