A three-dimensional multimode lumped-element resonator for collective spin manipulation and dispersive readout
Abstract
We report a three-dimensional lumped-element multimode microwave resonator that enables homogeneous collective manipulation and dispersive readout of a macroscopic spin ensemble. By exploiting geometric symmetry, two anti-symmetric modes with strongly suppressed crosstalk are engineered to spatially overlap and couple to the same ensemble at distinct frequencies. Using negatively charged nitrogen-vacancy (NV−) centers in diamond at 28 mK, we observe a collective coupling strength of 5.0 MHz, which is in the vicinity of strong-coupling regime, and demonstrate nondestructive dispersive readout via a detuned mode. The compact design, tunable coupling, and high field homogeneity make this resonator a versatile device for hybrid spin–photon systems and multimode solid-state quantum technologies.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (8)
Zhuo Chen
Wen-Hua Qin
Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China 1 , Hefei 230026,
Han-Yu Ren
Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China 1 , Hefei 230026,
Zi-yi Liu
Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University
Kae Nemoto
Okinawa Institute of Science and Technology Graduate University 3 , Onna-son, Okinawa 904-0495,
William John Munro
Okinawa Institute of Science and Technology Graduate University 3 , Onna-son, Okinawa 904-0495,
Yingqiu Mao
Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China 1 , Hefei 230026,
Johannes Majer
Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China 1 , Hefei 230026,