Relatore
Descrizione
Granular aluminum is an intriguing superconducting material, which has recently been receiving increasing attention in the superconducting quantum bits (qubits) and detectors communities. Among its key features are a tunable kinetic inductance up to nH/sq, amenable nonlinearity, and low microwave frequency losses [1,2,3]. Furthermore, quasiparticle relaxation times on the order of ~s have been recently observed [1].
We will present our recent results on granular aluminum quantum circuits [4], and discuss how superconducting qubits combined with fast readout electronics could be utilized as ultra-sensitive low temperature detectors.
[1] L. Grünhaupt et. al, Phys. Rev. Lett. 121, 117001 (2018)
[2] N. Maleeva et al., Nat. Commun. 9, 3889 (2018)
[3] F. Valenti et al., Phys. Rev. Appl. (in press), Preprint at: http://arxiv.org/abs/1810.12341
[4] L. Grünhaupt & M. Spiecker et al., Nat. Mater. (in press), Preprint at: http://arxiv.org/abs/1809.10646
Student (Ph.D., M.Sc. or B.Sc.) | N |
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Less than 5 years of experience since completion of Ph.D | Y |