TY - JOUR

T1 - Adiabatic Spin Dynamics by Chirped Microwave Pulses Based on AWG-ESR

AU - Sato, Kazunobu

AU - Hirao, Rei

AU - Yamamoto, Satoru

AU - Ivanov, Konstantin L.

AU - Takui, Takeji

N1 - Funding Information: The Osaka City University (OCU)/Osaka Metropolitan University group acknowledges the support by JSPS KAKENHI Grant Numbers JP17H03012, JP19H05621 from Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT, Japan) and by Open Advanced Research Facilities Initiative Program from MEXT, Japan. The OCU group also acknowledges AOARD for support by AOARD Scientific Project on "Quantum Properties of Molecular Nanomagnets" (Award No. FA2386-13-1-4029, 4030, 4031) and AOARD Project on “Molecular Spins for Quantum Technologies” (Grant No. FA2386-17-1-4040). The work has been partially supported by the Grants-in-Aid for Scientific Research on Innovative Areas (Quantum Cybernetics) from the MEXT, Japan and by FIRST Quantum Information Processing Project, the Cabinet Office, Japan. K.L.I. acknowledges the Japanese Society for the Promotion of Science (JSPS) for a guest professorship at Osaka City University, Russian Science Foundation (Grant No. 14-13-01053) for financial support and FASO of RF (Project No. 0333-2016-0001). Publisher Copyright: © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.

PY - 2023/1/1

Y1 - 2023/1/1

N2 - We present methods for optimizing frequency sweeps for “fast” adiabatic inversion in ESR spectroscopy. To perform the sought optimization, we need to either exploit “constant adiabaticity” chirps or utilize the gradient ascent pulse engineering (GRAPE) method: in these ways, the Δ(t) profiles are evaluated, which allow one to minimize the duration of the chirps. Arbitrary waveform generator-based ESR (AWG-ESR) enables us to apply versatile MW-shaped pulses and to control dynamics of the spin systems under study. Spin dynamics for spin inversion by the shaped pulses were observed. Comparison of different frequency sweeps applied to both a homogeneous ESR signal and a spin packet of inhomogeneously broadened ESR signals indicates that the duration of the adiabatic sweeps can be significantly reduced.

AB - We present methods for optimizing frequency sweeps for “fast” adiabatic inversion in ESR spectroscopy. To perform the sought optimization, we need to either exploit “constant adiabaticity” chirps or utilize the gradient ascent pulse engineering (GRAPE) method: in these ways, the Δ(t) profiles are evaluated, which allow one to minimize the duration of the chirps. Arbitrary waveform generator-based ESR (AWG-ESR) enables us to apply versatile MW-shaped pulses and to control dynamics of the spin systems under study. Spin dynamics for spin inversion by the shaped pulses were observed. Comparison of different frequency sweeps applied to both a homogeneous ESR signal and a spin packet of inhomogeneously broadened ESR signals indicates that the duration of the adiabatic sweeps can be significantly reduced.

UR - http://www.scopus.com/inward/record.url?scp=85143209536&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/13b16618-7a8a-3ae0-bb61-ec540d022235/

U2 - 10.1007/s00723-022-01513-8

DO - 10.1007/s00723-022-01513-8

M3 - Article

AN - SCOPUS:85143209536

VL - 54

SP - 183

EP - 201

JO - Applied Magnetic Resonance

JF - Applied Magnetic Resonance

SN - 0937-9347

ER -