Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Stefan, Imhof"'
Autor:
Alexander Stegmaier, Hauke Brand, Stefan Imhof, Alexander Fritzsche, Tobias Helbig, Tobias Hofmann, Igor Boettcher, Martin Greiter, Ching Hua Lee, Gaurav Bahl, Alexander Szameit, Tobias Kießling, Ronny Thomale, Lavi K. Upreti
Publikováno v:
Physical Review Research, Vol 6, Iss 2, p 023010 (2024)
Quantized adiabatic transport can occur when a system is slowly modulated over time. In most realizations, however, the efficiency of such transport is reduced by unwanted dissipation, back-scattering, and nonadiabatic effects. In this paper, we real
Externí odkaz:
https://doaj.org/article/9235d9395c514053b63d5b266b4d5ec9
Autor:
Anffany Chen, Hauke Brand, Tobias Helbig, Tobias Hofmann, Stefan Imhof, Alexander Fritzsche, Tobias Kießling, Alexander Stegmaier, Lavi K. Upreti, Titus Neupert, Tomáš Bzdušek, Martin Greiter, Ronny Thomale, Igor Boettcher
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Hyperbolic lattices emulate particle dynamics equivalent to those in negatively curved space, with connections to general relativity. Here, the authors use electric circuits with a novel complex-phase circuit element to simulate hyperbolic graphene w
Externí odkaz:
https://doaj.org/article/5e4a5bdb3f6a41a582ba369fe7e6e93f
Autor:
Patrick M. Lenggenhager, Alexander Stegmaier, Lavi K. Upreti, Tobias Hofmann, Tobias Helbig, Achim Vollhardt, Martin Greiter, Ching Hua Lee, Stefan Imhof, Hauke Brand, Tobias Kießling, Igor Boettcher, Titus Neupert, Ronny Thomale, Tomáš Bzdušek
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Spaces with negative curvature are difficult to realise and investigate experimentally, but they can be emulated with synthetic matter. Here, the authors show how to do this using an electric circuit network, and present a method to characterize and
Externí odkaz:
https://doaj.org/article/f3e742da54644207a0c96ca9b44595a5
Autor:
Hendrik Hohmann, Tobias Hofmann, Tobias Helbig, Stefan Imhof, Hauke Brand, Lavi K. Upreti, Alexander Stegmaier, Alexander Fritzsche, Tobias Müller, Udo Schwingenschlögl, Ching Hua Lee, Martin Greiter, Laurens W. Molenkamp, Tobias Kießling, Ronny Thomale
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p L012041 (2023)
We observe a localized cnoidal (LCn) state in an electric circuit network. Its formation derives from the interplay of nonlinearity and the topology inherent to a Su-Schrieffer-Heeger (SSH) chain of inductors. Varicap diodes act as voltage-dependent
Externí odkaz:
https://doaj.org/article/c5785a18ef454457af75e426e017603b
Autor:
Stefan Imhof, Ronny Thomale, Martin Greiter, Tobias Kiessling, Alexander Szameit, Tobias Hofmann, Tobias Helbig, M. AbdelGhany, Ching Hua Lee, Laurens W. Molenkamp
Publikováno v:
Nature Physics. 16:747-750
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 the inclusion of features such as gain and loss, or periodic driving, qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7963b41a5cbafe729eb0c99d56ddf2b7
https://doi.org/10.1038/s41567-020-0922-9
https://doi.org/10.1038/s41567-020-0922-9
Autor:
Hendrik Hohmann, Tobias Hofmann, Tobias Helbig, Stefan Imhof, Hauke Brand, Lavi K. Upreti, Alexander Stegmaier, Alexander Fritzsche, Tobias Müller, Udo Schwingenschlögl, Ching Hua Lee, Martin Greiter, Laurens W. Molenkamp, Tobias Kießling, Ronny Thomale
We observe a localized cnoidal (LCn) state in an electric circuit network. Its formation derives from the interplay of non-linearity and the topology inherent to a Su-Schrieffer-Heeger (SSH) chain of inductors. Varicap diodes act as voltage-dependent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::600e4847dd76183060d6c2afcbda57b9
Autor:
Alexander Fritzsche, Tobias Helbig, Mark Kremer, Oliver G. Schmidt, Ronny Thomale, Igor Boettcher, Thorsten Feichtner, Stefan Imhof, Sebastian Klembt, Martin Greiter, Alexander Szameit, Ion Cosma Fulga, Libo Ma, Sven Höfling, Alexander Stegmaier, Tobias Kiessling, Tobias Hofmann, Ching Hua Lee
Publikováno v:
Physical Review Letters. 126
We employ electric circuit networks to study topological states of matter in non-Hermitian systems enriched by parity-time symmetry PT and chiral symmetry anti-PT (APT). The topological structure manifests itself in the complex admittance bands which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47d7617e18439e9fa9d0f415f0fa4931
https://doi.org/10.1103/physrevlett.126.215302
https://doi.org/10.1103/physrevlett.126.215302
Autor:
Alexander, Stegmaier, Stefan, Imhof, Tobias, Helbig, Tobias, Hofmann, Ching Hua, Lee, Mark, Kremer, Alexander, Fritzsche, Thorsten, Feichtner, Sebastian, Klembt, Sven, Höfling, Igor, Boettcher, Ion Cosma, Fulga, Libo, Ma, Oliver G, Schmidt, Martin, Greiter, Tobias, Kiessling, Alexander, Szameit, Ronny, Thomale
Publikováno v:
Physical review letters. 126(21)
We employ electric circuit networks to study topological states of matter in non-Hermitian systems enriched by parity-time symmetry PT and chiral symmetry anti-PT (APT). The topological structure manifests itself in the complex admittance bands which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::b9a4babd91dbc07d36f2642fec1ebfca
https://pubmed.ncbi.nlm.nih.gov/34114871
https://pubmed.ncbi.nlm.nih.gov/34114871
Autor:
Tobias Kießling, Alexander Stegmaier, Jörn Dunkel, Stefan Imhof, Henrik Ronellenfitsch, Tejas Kotwal, Hauke Brand, Ronny Thomale, Fischer Moseley
Publikováno v:
Proc Natl Acad Sci U S A
The transfer of topological concepts from the quantum world to classical mechanical and electronic systems has opened fundamentally new approaches to protected information transmission and wave guidance. A particularly promising technology are recent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5244b6484c31990e0c303b8aade2ad51
Autor:
Laurens W. Molenkamp, Ronny Thomale, Tobias Helbig, Tobias Hofmann, Stefan Imhof, Tobias Kiessling, Ching Hua Lee
We develop an approach to design, engineer, and measure band structures in a synthetic crystal composed of electric circuit elements. Starting from the nodal analysis of a circuit lattice in terms of currents and voltages, our Laplacian formalism for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::229352b90d705481c30f2b22e6bbbddc