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Reciprocal skin effect and its realization in a topolectrical circuit (CROSBI ID 279305)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Hofmann, Tobias ; Helbig, Tobias ; Schindler, Frank ; Salgo, Nora ; Brzezińska, Marta ; Greiter, Martin ; Kiessling, Tobias ; Wolf, David ; Vollhardt, Achim ; Kabaši, Anton et al. Reciprocal skin effect and its realization in a topolectrical circuit // Physical review research, 2 (2020), 2; 023265, 11. doi: 10.1103/physrevresearch.2.023265

Podaci o odgovornosti

Hofmann, Tobias ; Helbig, Tobias ; Schindler, Frank ; Salgo, Nora ; Brzezińska, Marta ; Greiter, Martin ; Kiessling, Tobias ; Wolf, David ; Vollhardt, Achim ; Kabaši, Anton ; Lee, Ching Hua ; Bilušić, Ante ; Thomale, Ronny ; Neupert, Titus

engleski

Reciprocal skin effect and its realization in a topolectrical circuit

A system is non-Hermitian when it exchanges energy with its environment and nonreciprocal when it behaves differently upon the interchange of input and response. Within the field of metamaterial research on synthetic topological matter, the skin effect describes the conspiracy of non-Hermiticity and nonreciprocity to yield extensive anomalous localization of all eigenmodes in a (quasi) one-dimensional geometry. Here, we introduce the reciprocal skin effect, which occurs in non-Hermitian but reciprocal systems in two or more dimensions: Eigenmodes with opposite longitudinal momentum exhibit opposite transverse anomalous localization. We experimentally demonstrate the reciprocal skin effect in a passive RLC circuit, suggesting convenient alternative implementations in optical, acoustic, mechanical, and related platforms. Skin mode localization brings forth potential applications in directional and polarization detectors for electromagnetic waves.

non-Hermiticity ; topological states

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Podaci o izdanju

2 (2)

2020.

023265

11

objavljeno

2643-1564

10.1103/physrevresearch.2.023265

Povezanost rada

Fizika

Poveznice