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Eriksson, Erik (author), Riwar, Roman Pascal (author), Houzet, Manuel (author), Meyer, Julia S. (author), Nazarov, Y.V. (author)
Recently we predicted that the Andreev bound-state spectrum of four-terminal Josephson junctions may possess topologically protected zero-energy Weyl singularities, which manifest themselves in a quantized transconductance in units of 4e2/h when two of the terminals are voltage biased [R.-P. Riwar, M. Houzet, J. S. Meyer, and Y. V. Nazarov,...
journal article 2017
document
Bespalov, Anton (author), Houzet, Manuel (author), Meyer, Julia S. (author), Nazarov, Y.V. (author)
Experimentally, the concentration of quasiparticles in gapped superconductors always largely exceeds the equilibrium one at low temperatures. Since these quasiparticles are detrimental for many applications, it is important to understand theoretically the origin of the excess. We demonstrate in detail that the dynamics of quasiparticles...
journal article 2016
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Riwar, Roman Pascal (author), Houzet, Manuel (author), Meyer, Julia S. (author), Nazarov, Y.V. (author)
Topological materials and their unusual transport properties are now at the focus of modern experimental and theoretical research. Their topological properties arise from the bandstructure determined by the atomic composition of a material and as such are difficult to tune and naturally restricted to ≤3 dimensions. Here we demonstrate that n...
journal article 2016
document
Bespalov, Anton (author), Houzet, Manuel (author), Meyer, Julia S. (author), Nazarov, Y.V. (author)
We study the density of states in disordered s-wave superconductors with a small gap anisotropy. We consider disorder in the form of common nonmagnetic scatterers and pairing-potential impurities, which interact with electrons via an electric potential and a local distortion of the superconducting gap. Using quasiclassical Green functions, we...
journal article 2016
document
Riwar, R.P. (author), Houzet, M. (author), Meyer, J.S. (author), Nazarov, Y.V. (author)
We study a short multichannel superconducting junction subject to dc and ac phase biases. The ac modulation changes the occupation of the Andreev bound states formed at the constriction by transitions between bound states and the continuum. In a short junction, the nonequilibrium Andreev bound-state population may relax through processes that...
journal article 2015
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