In situ amplification of spin echoes within a kinetic inductance parametric amplifier
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In situ amplification of spin echoes within a kinetic inductance parametric amplifier. / Vine, Wyatt; Savytskyi, Mykhailo; Vaartjes, Arjen; Kringhoj, Anders; Parker, Daniel; Slack-Smith, James; Schenkel, Thomas; Molmer, Klaus; McCallum, Jeffrey C.; Johnson, Brett C.; Morello, Andrea; Pla, Jarryd J.
I: Science Advances, Bind 9, Nr. 10, 1593, 10.03.2023.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - In situ amplification of spin echoes within a kinetic inductance parametric amplifier
AU - Vine, Wyatt
AU - Savytskyi, Mykhailo
AU - Vaartjes, Arjen
AU - Kringhoj, Anders
AU - Parker, Daniel
AU - Slack-Smith, James
AU - Schenkel, Thomas
AU - Molmer, Klaus
AU - McCallum, Jeffrey C.
AU - Johnson, Brett C.
AU - Morello, Andrea
AU - Pla, Jarryd J.
PY - 2023/3/10
Y1 - 2023/3/10
N2 - The use of superconducting microresonators together with quantum-limited Josephson parametric amplifiers has enhanced the sensitivity of pulsed electron spin resonance (ESR) measurements by more than four orders of magnitude. So far, the microwave resonators and amplifiers have been designed as separate components due to the incompatibility of Josephson junction-based devices with magnetic fields. This has produced complex spectrometers and raised technical barriers toward adoption of the technique. Here, we circumvent this issue by coupling an ensemble of spins directly to a weakly nonlinear and magnetic field-resilient superconducting microwave resonator. We perform pulsed ESR measurements with a 1-pL mode volume containing 6 x 10(7) spins and amplify the resulting signals within the device. When considering only those spins that contribute to the detected signals, we find a sensitivity of 2.8 x10(3)spins/root Hz for a Hahn echo sequence at a temperature of 400 mK. In situ amplification is demonstrated at fields up to 254 mT, highlighting the technique's potential for application under conventional ESR operating conditions.
AB - The use of superconducting microresonators together with quantum-limited Josephson parametric amplifiers has enhanced the sensitivity of pulsed electron spin resonance (ESR) measurements by more than four orders of magnitude. So far, the microwave resonators and amplifiers have been designed as separate components due to the incompatibility of Josephson junction-based devices with magnetic fields. This has produced complex spectrometers and raised technical barriers toward adoption of the technique. Here, we circumvent this issue by coupling an ensemble of spins directly to a weakly nonlinear and magnetic field-resilient superconducting microwave resonator. We perform pulsed ESR measurements with a 1-pL mode volume containing 6 x 10(7) spins and amplify the resulting signals within the device. When considering only those spins that contribute to the detected signals, we find a sensitivity of 2.8 x10(3)spins/root Hz for a Hahn echo sequence at a temperature of 400 mK. In situ amplification is demonstrated at fields up to 254 mT, highlighting the technique's potential for application under conventional ESR operating conditions.
KW - STORING QUANTUM INFORMATION
KW - SILICON
KW - SENSITIVITY
KW - ELECTRON
U2 - 10.1126/sciadv.adg1593
DO - 10.1126/sciadv.adg1593
M3 - Journal article
C2 - 36897947
VL - 9
JO - Science advances
JF - Science advances
SN - 2375-2548
IS - 10
M1 - 1593
ER -
ID: 345369047