7 papers
Non-local Tunneling Spectroscopy of Inelastic Quasiparticle Relaxation in Superconducting 1-D Wires
Kevin M. Ryan, Detlef Beckmann, Venkat Chandrasekhar
Non-local conductance experiments using tunnel junctions can provide valuable spectroscopic information on both the transport and relaxation of quasiparticles in superconductors, a…
Using Crossed Andreev Reflection to Split Electrons
Austin Marga, Venkat Chandrasekhar
Mesoscopic systems possess shot noise in their currents due to the quantization of the conducting quasiparticles. Measurements of this shot noise are useful to study phenomena that…
Tuning the the fundamental periodicity of the current-phase relation in multiterminal diffusive Josephson junctions
Venkat Chandrasekhar
Conventional superconductor/insulator/superconductor (SIS) Josephson junctions, devices where two superconductors are separated by a tunnel barrier are technologically important as…
Supercurrent tuning of the Josephson coupling energy
Maxwell Wisne, Venkat Chandrasekhar
The ability to non-dissipatively tune the Josephson coupling energy of Josephson junctions is a useful tool in frequency-tunable qubits. This is typically done by threading magneti…
Identifying Materials-Level Sources of Performance Variation in Superconducting Transmon Qubits
Akshay A. Murthy, Mustafa Bal, Michael J. Bedzyk +46
The Superconducting Materials and Systems (SQMS) Center, a DOE National Quantum Information Science Research Center, has conducted a comprehensive and coordinated study using super…
Mapping the topological proximity-induced gap of multiterminal Josephson junctions
Maxwell Wisne, Yanpei Deng, Markus Lilja +2
Multiterminal Josephson junctions (MTJJs), devices in which a normal metal is in contact with three or more superconducting leads, have been proposed as artificial analogs of topol…