期刊
PHYSICAL REVIEW B
卷 97, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.97.125429
关键词
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资金
- U.S. Department of Defense Multidisciplinary University Initiative Center for Dynamic Magneto-Optics via AFOSR [FA9550-14-1-0040]
- Japan Society for the Promotion of Science (JSPS) KAKENHI grant
- IMPACT program of the Japan Science and Technology Agency
- JSPS-Russian Foundation for Basic Research [17-52-50023]
- Centers of Research Excellence in Science and Technology [JPMJCR1676]
- RIKEN-National Institute of Advanced Industrial Science and Technology Challenge Research Fund
- Sir John Templeton Foundation
- Grants-in-Aid for Scientific Research [15H02118] Funding Source: KAKEN
We describe a method to tune, in situ, between transverse and longitudinal light-matter coupling in a hybrid circuit-QED device composed of an electron-spin degree of freedom coupled to a microwave transmission line cavity. Our approach relies on periodic modulation of the coupling itself, such that in a certain frame the interaction is both amplified and either transverse or, by modulating at two frequencies, longitudinal. The former realizes an effective simulation of certain aspects of the ultra-strong-coupling regime, while the latter allows one to implement a longitudinal readout scheme even when the intrinsic Hamiltonian is transverse, and the individual spin or cavity frequencies cannot be changed. We analyze the fidelity of using such a scheme to measure the state of the electron-spin degree of freedom, and argue that the longitudinal readout scheme can operate in regimes where the traditional dispersive approach fails.
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