Hybrid-Order Skin Effect from Loss-Induced Nonreciprocity

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成果类型：

期刊论文

作者：

Wu, Jien;Hu, Yejian;He, Zhaojian;Deng, Ke;Huang, Xueqin;...

通讯作者：

Deng, Weiyin;Lu, Jiuyang;Liu, ZY

作者机构：

[Wu, Jien; Deng, Ke; He, Zhaojian] Changsha Univ Sci & Technol, Sch Phys & Elect Sci, Changsha 410114, Peoples R China.

[Deng, Weiyin; Hu, Yejian; Liu, Zhengyou; Ke, Manzhu; Lu, Jiuyang; Deng, WY] Wuhan Univ, Key Lab Artificial Microand Nanostruct, Minist Educ, Wuhan 430072, Peoples R China.

[Deng, Weiyin; Hu, Yejian; Liu, Zhengyou; Ke, Manzhu; Lu, Jiuyang; Deng, WY] Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China.

[Huang, Xueqin] South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510640, Guangdong, Peoples R China.

[Liu, Zhengyou] Wuhan Univ, Inst Adv Studies, Wuhan 430072, Peoples R China.

通讯机构：

[Lu, JY; Deng, WY; Liu, ZY ] W

Wuhan Univ, Key Lab Artificial Microand Nanostruct, Minist Educ, Wuhan 430072, Peoples R China.

Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China.

Wuhan Univ, Inst Adv Studies, Wuhan 430072, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW LETTERS

ISSN：

0031-9007

年：

2025

卷：

134

期：

DOI：

10.1103/PhysRevLett.134.176601

基金类别：

National Key R&D Program of China [2022YFA1404500, 2022YFA1404900]; National Natural Science Foundation of China [12074128, 12222405, 12374409]; Guangdong Basic and Applied Basic Research Foundation [2021B1515020086, 2022B1515020102]

机构署名：

本校为第一机构

院系归属：

物理与电子科学学院

摘要：

Skin effects, the phenomena of the bulk states collapsing toward open boundaries, have mostly been revealed in non-Hermitian systems hosting nonreciprocity. Either the first-order or the higher-order of skin effects have been observed. Here, we report our first discovery of a hybrid-order of skin effects, of which the utilized two-dimensional system exhibits not only the first-order skin modes, but also the second-order skin modes respectively on the edges and the corners, the different type of open boundaries. We propose a universal approach to achieving nonreciprocal couplings by virtue of t...

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Hybrid-Order Skin Effect from Loss-Induced Nonreciprocity

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