The 64th JSAP Spring Meeting, 2017

Presentation information

Oral presentation

1 Interdisciplinary Physics and Related Areas of Science and Technology » 1.5 Instrumentation, measurement and Metrology

[16a-423-1~12] 1.5 Instrumentation, measurement and Metrology

Thu. Mar 16, 2017 9:00 AM - 12:15 PM 423 (423)

Hidehiko Nonaka(AIST), kazuya kikunaga(AIST)

10:30 AM - 10:45 AM

[16a-423-7] Spin Resonace at the Quantum Limit

Yuimaru Kubo1,2,3, Audrey Bienfait3, Jarryd Pla4, John Morton4, Patrice Bertet3 (1.OIST, 2.JST PRESTO, 3.CEA-Saclay, 4.Univ. College London)

Keywords:Spin Resonance, Hybrid Quantum Systems, Superconducting Quantum Circuits

The detection and characterization of paramagnetic species by electron-spin resonance (ESR) spectroscopy rely on the inductive detection of the small microwave signals emitted by the spins during their Larmor precession into a microwave resonator in which they are placed. Using the tools offered by circuit Quantum Electrodynamics (QED), namely high quality factor superconducting micro-resonators and Josephson parametric amplifiers that operate at the quantum limit when cooled at 20mK [1], we report an increase of the sensitivity of inductively detected ESR by 4 orders of magnitude better than the state-of-the-art, enabling the detection of 1700 Bismuth donor spins in silicon with a signal-to-noise ratio of 1 in a single echo [2].
[1] Zhou et al., Phys. Rev. B 89, 214517 (2014).
[2] Bienfait et al., Nature Nanotech. 11, pp253–257 (2016).