Tunable higher-order non-Hermitian skin effect in the SSH topolectrical circuits.

 0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Xiaoyu Dai, Wei Lin, Banxian Ruan, Yuanjiang Xiang, 乐彬 王

Ngôn ngữ: eng

Ký hiệu phân loại:

Thông tin xuất bản: England : Journal of physics. Condensed matter : an Institute of Physics journal , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 726527

Non-Hermitian systems reveal a wide range of fascinating physical phenomena beyond those found in Hermitian systems, drawing significant interest. Among these phenomena, the non-Hermitian skin effect (NHSE) is particularly notable. This effect enables the bulk states to collapse toward the boundaries and manifest as localized states. In this study, we report an experimental realization of a tunable higher-order NHSE in the Su-Schrieffer-Heeger (SSH) topolectrical circuits. Our experiments were conducted on specially designed one-dimensional and two-dimensional SSH tight-binding circuit networks. Two types of NHSEs with distinct angular localized modes (the diagonal distributed topological-skin mode and the isolated skin-skin angular mode) have been confirmed theoretically and experimentally. By controlling operational amplifiers and other electronic components, we could predict and tunable the skin effect modes in varying dimensions. The tunable NHSEs can be applied to guide waves into target regions, which can offer a number of valuable potential applications.
Tạo bộ sưu tập với mã QR

THƯ VIỆN - TRƯỜNG ĐẠI HỌC CÔNG NGHỆ TP.HCM

ĐT: (028) 36225755 | Email: tt.thuvien@hutech.edu.vn

Copyright @2024 THƯ VIỆN HUTECH