Spin number dependent dissipative coupling strength
A system consisting of a yttrium iron garnet (YIG) sphere coupled to a 1D circular-rectangular cavity is tuned between level repulsion and attraction by rotating the angular position of the YIG sphere within the cavity. The dominance of coherent or dissipative coupling mechanisms was determined, and...
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doaj-1bced966bb23418ba05c5b603e2bb0752020-11-25T02:44:57ZengAIP Publishing LLCAIP Advances2158-32262019-11-01911115012115012-510.1063/1.5126600Spin number dependent dissipative coupling strengthC. H. Yu0Y. Yang1J. W. Rao2P. Hyde3Yi-Pu Wang4B. Zhang5Y. S. Gui6C.-M. Hu7Jiangsu Key Laboratory of ASIC Design, Nantong University, Nantong 226019, ChinaDepartment of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, CanadaDepartment of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, CanadaDepartment of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, CanadaDepartment of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, CanadaState Key Laboratory of Infrared Physics, Chinese Academy of Science, Shanghai 200083, ChinaDepartment of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, CanadaDepartment of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2, CanadaA system consisting of a yttrium iron garnet (YIG) sphere coupled to a 1D circular-rectangular cavity is tuned between level repulsion and attraction by rotating the angular position of the YIG sphere within the cavity. The dominance of coherent or dissipative coupling mechanisms was determined, and the coupling strength was deduced by fitting the transmission spectra. By changing the diameter of the YIG sphere from 0.5 mm to 0.3 mm and 1.0 mm, we confirm that the N scaling of coherent coupling strength is also applicable in dissipative coupling. A large YIG sphere leads to an enhanced coupling strength that is useful for information processing. Alternatively, a small YIG sphere results in a narrow transition regime, which may be helpful for identifying the dissipative coupling dominated regime and providing insight into the physical origin of dissipative coupling.http://dx.doi.org/10.1063/1.5126600 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
C. H. Yu Y. Yang J. W. Rao P. Hyde Yi-Pu Wang B. Zhang Y. S. Gui C.-M. Hu |
spellingShingle |
C. H. Yu Y. Yang J. W. Rao P. Hyde Yi-Pu Wang B. Zhang Y. S. Gui C.-M. Hu Spin number dependent dissipative coupling strength AIP Advances |
author_facet |
C. H. Yu Y. Yang J. W. Rao P. Hyde Yi-Pu Wang B. Zhang Y. S. Gui C.-M. Hu |
author_sort |
C. H. Yu |
title |
Spin number dependent dissipative coupling strength |
title_short |
Spin number dependent dissipative coupling strength |
title_full |
Spin number dependent dissipative coupling strength |
title_fullStr |
Spin number dependent dissipative coupling strength |
title_full_unstemmed |
Spin number dependent dissipative coupling strength |
title_sort |
spin number dependent dissipative coupling strength |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2019-11-01 |
description |
A system consisting of a yttrium iron garnet (YIG) sphere coupled to a 1D circular-rectangular cavity is tuned between level repulsion and attraction by rotating the angular position of the YIG sphere within the cavity. The dominance of coherent or dissipative coupling mechanisms was determined, and the coupling strength was deduced by fitting the transmission spectra. By changing the diameter of the YIG sphere from 0.5 mm to 0.3 mm and 1.0 mm, we confirm that the N scaling of coherent coupling strength is also applicable in dissipative coupling. A large YIG sphere leads to an enhanced coupling strength that is useful for information processing. Alternatively, a small YIG sphere results in a narrow transition regime, which may be helpful for identifying the dissipative coupling dominated regime and providing insight into the physical origin of dissipative coupling. |
url |
http://dx.doi.org/10.1063/1.5126600 |
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