SKM 2021 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 1: Focus Session: Disordered and Granular Superconductors: Fundamentals and Applications in Quantum Technology I

Montag, 27. September 2021, 10:00–12:45, H6

Superconducting qubits and quantum circuits are traditionally fabricated from simple superconductors such as aluminum or niobium. Recently, strongly disordered and granular superconductors have become a promising alternative for quantum devices that seek a combination of large impedance and low losses: here, the high kinetic inductance of disordered and granular superconductors is a key asset. While these particular materials are in the focus of fundamental superconductivity materials research already for a long time, their application in quantum technologies now motivates a tight interaction of these two research fields.
Organizers: Marc Scheffler (University of Stuttgart), Joachim Ankerhold (Ulm University)

	10:00	TT 1.1	Fate of the superfluid density near the SIT in amorphous superconductors — •Benjamin Sacepe
	10:30	TT 1.2	Superconducting silicon: material and devices — •Francesca Chiodi, Pierre Bonnet, Daniel Flanigan, Raphaelle Delagrange, Dominique Débarre, and Hélène le Sueur
	10:45	TT 1.3	Nanocrystalline boron-doped diamond as a model granular superconductor — •Georgina Klemencic, David Perkins, Jon Fellows, Soumen Mandal, Chris Muirhead, Robert Smith, Sean Giblin, and Oliver Williams
	11:00	TT 1.4	Distribution of the order parameter in strongly disordered superconductors: analytic theory — •Anton V. Khvalyuk and Mikhail V. Feigel’man
	11:15		15. min. break
	11:30	TT 1.5	Spectroscopy of a single Josephson impurity in a high kinetic inductance array — •Serge Florens, Sébastien Léger, Théo Sépulcre, Denis Basko, Izak Snyman, and Nicolas Roch
	12:00	TT 1.6	Low energy electrodynamics of strongly disordered superconductors — •Götz Seibold, Lara Benfatto, and Claudio Castellani
	12:15	TT 1.7	Decoupling of the Quasiparticle Number and Lifetime in a Disordered Superconductor Probed by Quasiparticle Fluctuation Measurements — •Steven A. H. de Rooij, Kevin Kouwenhoven, Jochem J. A. Baselmans, Vignesh Murugesan, David J. Thoen, and Pieter J. de Visser
	12:30	TT 1.8	Current-enhanced superfluid stiffness near the Berezinskii-Kosterlitz-Thouless transition in strongly disordered NbN-films — •Alexander Weitzel, Lea Pfaffinger, Klaus Kronfeldner, Thomas Huber, Lorenz Fuchs, Sven Linzen, Evgenii Il’ichev, Nicola Paradiso, and Christoph Strunk