Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Raffael L. Klees"'
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043045 (2023)
Many robust physical phenomena in quantum physics are based on topological invariants arising due to intriguing geometrical properties of quantum states. Prime examples are the integer and fractional quantum Hall effects that demonstrate quantized Ha
Externí odkaz:
https://doaj.org/article/d89e429274fc4cfe9cb267f14793eb30
Autor:
Haonan Huang, Jacob Senkpiel, Ciprian Padurariu, Robert Drost, Alberto Villas, Raffael L. Klees, Alfredo Levy Yeyati, Juan Carlos Cuevas, Björn Kubala, Joachim Ankerhold, Klaus Kern, Christian R. Ast
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p L032008 (2021)
Magnetic impurities on superconductors induce discrete bound levels inside the superconducting gap, known as Yu-Shiba-Rusinov (YSR) states. YSR levels are fully spin polarized such that the tunneling between YSR states depends on their relative spin
Externí odkaz:
https://doaj.org/article/5ae5d8a5e0344ed18c342704d0ec40fb
Autor:
Lev Teshler, Hannes Weisbrich, Jonathan Sturm, Raffael L. Klees, Gianluca Rastelli, Wolfgang Belzig
Publikováno v:
SciPost Physics, Vol 15, Iss 5, p 214 (2023)
In recent years, various classes of systems were proposed to realize topological states of matter. One of them are multiterminal Josephson junctions where topological Andreev bound states are constructed in the synthetic space of superconducting phas
Externí odkaz:
https://doaj.org/article/5b5ea77ed5794f13bca6d760532e3d24
Autor:
Zhuo-Yu Xian, Sven Danz, David Rodríguez Fernández, Ioannis Matthaiakakis, Christian Tutschku, Raffael L. Klees, Johanna Erdmenger, René Meyer, Ewelina M. Hankiewicz
Motivated by Hall viscosity measurements in graphene sheets, we study hydrodynamic transport of electrons in a channel of finite width in external electric and magnetic fields. We consider electric charge densities varying from close to the Dirac poi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4304f118830f2a6fe43a12541f002fcc
An in-plane magnetic field applied to an Ising superconductor converts spin-singlet Cooper pairs to spin-triplet ones. In this work, we study a Josephson junction formed by two Ising superconductors that are proximitized by ferromagnetic layers. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d72c130d9d5c96ce3f0ac74156438d72
http://arxiv.org/abs/2107.14259
http://arxiv.org/abs/2107.14259
Autor:
Juan Carlos Cuevas, Wolfgang Belzig, Raffael L. Klees, Gianluca Rastelli, Haonan Huang, Christian R. Ast, Alberto Villas, G. Morrás
Publikováno v:
Physical Review B
Very recent experiments have reported the tunneling between Yu-Shiba-Rusinov (YSR) bound states at the atomic scale. These experiments have been realized with the help of a scanning tunneling microscope where a superconducting tip is functionalized w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c7560f11f2d71a0d8b936b1a6af4a73
https://doi.org/10.1103/physrevb.103.155407
https://doi.org/10.1103/physrevb.103.155407
Publikováno v:
Biblos-e Archivo. Repositorio Institucional de la UAM
instname
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Multiterminal Josephson junctions constitute engineered topological systems in arbitrary synthetic dimensions defined by the superconducting phases. Microwave spectroscopy enables the measurement of the quantum geometric tensor, a fundamental quantit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2740ea50aad32fa0f16196010a776f9a
http://hdl.handle.net/10486/702226
http://hdl.handle.net/10486/702226
Publikováno v:
Biblos-e Archivo. Repositorio Institucional de la UAM
instname
instname
Quantization effects due to topological invariants such as Chern numbers have become very relevant in many systems, yet key quantities such as the quantum geometric tensor providing local information about quantum states remain experimentally difficu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b81203ae23178d3806ffedd9e80868ef
https://doi.org/10.1103/physrevlett.124.197002
https://doi.org/10.1103/physrevlett.124.197002
Topology ultimately unveils the roots of the perfect quantization observed in complex systems. The 2D quantum Hall effect is the celebrated archetype. Remarkably, topology can manifest itself even in higher-dimensional spaces in which control paramet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c604267fe97eb9a67a677a056f2f18c3
Inspired by recent experiments, we study a short superconducting junction of length $L\ll \xi$ (coherence length) inserted in a dc-SQUID containing an ancillary Josephson tunnel junction. We evaluate the nonequilibrium occupation of the Andreev bound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76c9e19330cfa20b94524be2bb92fde9