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Resistance of 2D superconducting films
E. J. König, I. V. Protopopov, A. Levchenko +2
We consider the problem of finite resistance in superconducting films with geometry of a strip of width near zero temperature. The resistance is generated by vortex configu…
Majorana modes in emergent-wire phases of helical and cycloidal magnet-superconductor hybrids
Stefan Rex, Igor V. Gornyi, Alexander D. Mirlin
Noncollinear magnetism opens exciting possibilities to generate topological superconductivity. Here, we focus on helical and cycloidal magnetic textures in magnet-superconductor hy…
Highlighting superconductivity in an insulator
Alexander Mirlin, Ivan Protopopov
Superconductor-insulator transition is a fascinating quantum phenomenon that reveals a competition between phase order and charge localization. Microwave spectroscopy provides a no…
Majorana bound states in magnetic skyrmions imposed onto a superconductor
Stefan Rex, Igor V. Gornyi, Alexander D. Mirlin
We consider a superconducting film exchange-coupled to a close-by chiral magnetic layer and study how magnetic skyrmions can induce the formation of Majorana bound states (MBS) in…
Decay of plasmonic waves in Josephson junction chains
M. Bard, I. V. Protopopov, A. D. Mirlin
We study the damping of plasma waves in linear Josephson junction chains as well as in two capacitively coupled chains. In the parameter regime where the ground capacitance can be…
Excess equilibrium noise in topological SNS junction between chiral Majorana liquids
Dmitriy S. Shapiro, Alexander D. Mirlin, Alexander Shnirman
We consider a Josephson contact mediated by 1D chiral modes on a surface of a 3D topological insulator with superimposed superconducting and magnetic layers. The system represents…
Superconductor-Insulator Transition in disordered Josephson junction chains
M. Bard, I. V. Protopopov, I. V. Gornyi +2
We study the superconductor-insulator quantum phase transition in disordered Josephson junction chains. To this end, we derive the field theory from the lattice model that describe…
Current-phase relation and -periodic critical current of a chiral Josephson contact between 1D Majorana modes
Dmitriy S. Shapiro, Alexander Shnirman, Alexander D. Mirlin
We explore a long Josephson contact transporting Cooper pairs between 1D charge-neutral chiral Majorana modes in the leads via charged Dirac chiral modes in the normal region. We i…