A universal non-Hermitian platform for bound state in the continuum enhanced wireless power transfer

扫码查看

原文链接

NETL
NSTL
万方数据

外文摘要：Non-Hermitian systems with parity-time(PT)-symmetry have been exten-sively studied and rapidly developed in resonance wireless power transfer(WPT).The WPT system that satisfies PT-symmetry always has real eigen-values,which promote efficient energy transfer.However,meeting the condition of PT-symmetry is one of the most puzzling issues.Stable power transfer under different transmission conditions is also a great challenge.Bound state in the continuum(BIC)supporting extreme quality-factor mode provides an opportunity for efficient WPT.Here,we propose theo-retically and demonstrate experimentally that BIC widely exists in reso-nance-coupled systems without PT-symmetry,and it can even realize more stable and efficient power transfer than PT-symmetric systems.Importantly,BIC for efficient WPT is universal and suitable in standard second-order and even high-order WPT systems.Our results not only extend non-Hermitian physics beyond PT-symmetry,but also bridge the gap between BIC and practical application engineering,such as high-performance WPT,wireless sensing and communications.

外文关键词：

non-Hermitian physicsparity-time asymmetrybound state in the continuumwireless power transfer

作者：

Haiyan Zhang、Zhiwei Guo、Yunhui Li、Yaping Yang、Yuguang Chen、Hong Chen

展开 >

作者单位：

School of Physics Science and Engineering,Tongji University,Shanghai 200092,China

Department of Electrical Engineering,Tongji University,Shanghai 201804,China

基金：

National Key R&D Program of ChinaNational Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central UniversitiesChenguang Program of Shanghai

项目编号：

2021YFA14006022023YFA140760012004284123742942212021057921CGA22

出版年：

2024

DOI：

10.1007/s11467-023-1388-x

物理学前沿

高等教育出版社

物理学前沿

CSTPCD

影响因子：0.816

ISSN：2095-0462

年,卷(期)：2024.19(4)