153 citations · 254 across the 5 of their papers we have counts for
25 papers
Designing Efficient Metal Contacts to Two-Dimensional Semiconductors MoSiN and WSiN Monolayers
Qianqian Wang, Liemao Cao, Shi-Jun Liang +8
Metal contacts to two-dimensional (2D) semiconductors are ubiquitous in modern electronic and optoelectronic devices. Such contacts are, however, often plagued by strong Fermi leve…
Topological defect engineering and PT-symmetry in non-Hermitian electrical circuits
Alexander Stegmaier, Stefan Imhof, Tobias Helbig +14
We employ electric circuit networks to study topological states of matter in non-Hermitian systems enriched by parity-time symmetry and chiral symmetry anti-$\mathca…
Ultrafast and Anharmonic Rabi Oscillations between Non-Bloch-Bands
Ching Hua Lee, Stefano Longhi
Rabi flopping between Bloch bands induced by a weak ac resonant field is a coherent effect involving interband transitions. Here we consider the fundamental processes of emission/a…
Topology-Induced Spontaneous Non-reciprocal Pumping in Cold-Atom Systems with Loss
Linhu Li, Ching Hua Lee, Jiangbin Gong
We propose a realistic cold-atom quantum setting where nontrivial energy-band topology induces non-reciprocal pumping. This is an intriguing non-Hermitian phenomenon that illustrat…
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…