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arXiv · 1409.8065

Superconducting atomic contacts inductively coupled to a microwave resonator

C. Janvier·L. Tosi·Ç. Ö. Girit·M. F. Goffman·H. Pothier·C. Urbina
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Abstract

We describe and characterize a microwave setup to probe the Andreev levels of a superconducting atomic contact. The contact is part of a superconducting loop inductively coupled to a superconducting coplanar resonator. By monitoring the resonator reflection coefficient close to its resonance frequency as a function of both flux through the loop and frequency of a second tone we perform spectroscopy of the transition between two Andreev levels of highly transmitting channels of the contact. The results indicate how to perform coherent manipulation of these states.

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C. Janvier, L. Tosi, Ç. Ö. Girit, M. F. Goffman, H. Pothier, C. Urbina. 2014-09-29. Superconducting atomic contacts inductively coupled to a microwave resonator. https://doi.org/10.1088/0953-8984%2F26%2F47%2F474208

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