Postdoctoral research position: Quantum circuits for ultra-low volume EPR spectroscopy

The post-doctoral project will center on developing and building an Electron Spin Resonance (EPR) spectroscopy tool based on quantum circuits technology. The aim of the project is to demonstrate the ability to detect and characterize samples with ultra-small volumes. The gain in absolute and concentration sensitivity will be based on earlier developments [1-2] based on quantum circuits techniques, in particular high quality factor small mode volumes superconducting resonators and quantum-limited amplifiers. The candidate will namely work on building fast tunable matching circuits and integrated broadband quantum-limited detection circuits to extend these early experiments to short-lived species. A successful implementation of these circuits will enable the applicant to measure target species encompassing typical EPR characterization species, nitroxide labels and other markers, and protein crystals. The post-doc will take place in the Quantum circuits group at ENS de Lyon, which is an expert in quantum circuit technologies for quantum sensing and quantum information processing.

An ideal candidate will thus have background in pulsed EPR (or NMR), and/or experimental superconducting circuits and/or quantum systems in condensed matter. Experience in the following will be appreciated: pulsed EPR schemes, nanofabrication, low-temperature measurements, and/or microwave instrumentation and design.

If you like experimental physics, want to enjoy living in one of the world food capitals and its nearby outdoors attractions, don’t hesitate to reach out! Informal enquiries should be sent to Dr Audrey Bienfait ( Further details on the position and application process can be found on the application website. We are looking to fill this position as soon as possible, preferably in the Fall 2020. The position is for one year, with possible extension.

[1] A. Bienfait et al., Nature Nanotechnology, 11, 253–257 (2016)
[2] V. Ranjan et al., Applied Physics Letters 116 (18), 184002 (2020)

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