Superconducting on-chip spectrometer for mesoscopic quantum systems
- URL: http://arxiv.org/abs/2106.02632v2
- Date: Wed, 3 Nov 2021 15:35:22 GMT
- Title: Superconducting on-chip spectrometer for mesoscopic quantum systems
- Authors: J. Griesmar and R. H. Rodriguez and V. Benzoni and J.-D. Pillet and
J.-L. Smirr and F. Lafont and \c{C}. \"O. Girit
- Abstract summary: Recent advances in microfabrication have introduced novel, intriguing mesoscopic quantum systems.
A sensitive, general purpose spectrometer to probe the energy levels of these systems is lacking.
We propose an on-chip absorption spectrometer functioning well into the millimeter wave band based on a voltage-biased superconducting quantum interference device.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Spectroscopy is a powerful tool to probe physical, chemical, and biological
systems. Recent advances in microfabrication have introduced novel, intriguing
mesoscopic quantum systems including superconductor-semiconductor hybrid
devices and topologically non-trivial electric circuits. A sensitive, general
purpose spectrometer to probe the energy levels of these systems is lacking. We
propose an on-chip absorption spectrometer functioning well into the millimeter
wave band which is based on a voltage-biased superconducting quantum
interference device. We demonstrate the capabilities of the spectrometer by
coupling it to a variety of superconducting systems, probing phenomena such as
quasiparticle and plasma excitations. We perform spectroscopy of a microscopic
tunable non-linear resonator in the 40-50 GHz range and measure transitions to
highly excited states. The Josephson junction spectrometer, with outstanding
frequency range, sensitivity, and coupling strength will enable new experiments
in linear and non-linear spectroscopy of novel mesoscopic systems.
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