898 citations · 3.3k across the 18 of their papers we have counts for
4 papers · 1 filter
Reciprocal skin effect and its realization in a topolectrical circuit
Tobias Hofmann, Tobias Helbig, Frank Schindler +11
A system is non-Hermitian when it exchanges energy with its environment and non-reciprocal when it behaves differently upon the interchange of input and response. Within the field…
Observation of bulk boundary correspondence breakdown in topolectrical circuits
Tobias Helbig, Tobias Hofmann, Stefan Imhof +7
The study of the laws of nature has traditionally been pursued in the limit of isolated systems, where energy is conserved. This is not always a valid approximation, however, as th…
Imaging nodal knots in momentum space through topolectrical circuits
Ching Hua Lee, Amanda Sutrisno, Tobias Hofmann +7
Knots are intricate structures that cannot be unambiguously distinguished with any single topological invariant. Momentum space knots, in particular, have been elusive due to their…
Tomonaga-Luttinger liquid in the edge channels of a quantum spin Hall insulator
R. Stühler, F. Reis, T. Müller +5
Topological quantum matter is characterized by non-trivial global invariants of the bulk which induce gapless electronic states at its boundaries. A case in point are two-dimension…