Using materials for quasiparticle engineering

Autor: G Catelani, J P Pekola
Přispěvatelé: Forschungszentrum Jülich, Centre of Excellence in Quantum Technology, QTF, Department of Applied Physics, Aalto-yliopisto, Aalto University
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Materials for quantum technology 2(1), 013001-(2022). doi:10.1088/2633-4356/ac4a75
Popis: The fundamental excitations in superconductors - Bogoliubov quasiparticles - can be either a resource or a liability in superconducting devices: they are what enables photon detection in microwave kinetic inductance detectors, but they are a source of errors in qubits and electron pumps. To improve operation of the latter devices, ways to mitigate quasiparticle effects have been devised; in particular, combining different materials quasiparticles can be trapped where they do no harm and their generation can be impeded. We review recent developments in these mitigation efforts and discuss open questions.
11 pages, 2 figures
Databáze: OpenAIRE