538 citations · 2.1k across the 36 of their papers we have counts for
36 papers
Multiple Andreev Reflection Effects in Asymmetric STM Josephson Junctions
Wan-Ting Liao, S. K. Dutta, R. E. Butera +3
We have examined the electrical behavior of Josephson junctions formed by a scanning tunneling microscope (STM) with a Nb sample and a Nb tip, with normal-state resistances Rn vary…
Long-lived transmons with different electrode layouts
Kungang Li, S. K. Dutta, Zachary Steffen +6
To test the contribution of non-equilibrium quasiparticles to qubit relaxation, we have repeatedly measured the relaxation time T_1 in Al/AlOx/Al transmons with electrodes that hav…
Microwave photon-assisted phase-incoherent Cooper-pair tunneling in a Josephson STM
A. Roychowdhury, M. Dreyer, J. R. Anderson +2
We have observed photon-assisted Cooper-pair tunneling in an atomic-scale Josephson junction formed between a superconducting Nb tip and a superconducting Nb sample in a scanning t…
Contact resistance and phase slips in mesoscopic superfluid atom transport
S. Eckel, Jeffrey G. Lee, F. Jendrzejewski +3
We have experimentally measured transport of superfluid, bosonic atoms in a mesoscopic system: a small channel connecting two large reservoirs. Starting far from equilibrium (super…
Plasma etching of superconducting Niobium tips for scanning tunneling microscopy
A. Roychowdhury, R. Dana, M. Dreyer +3
We report a reproducible technique for the fabrication of sharp superconducting Nb tips for scanning tunneling microscopy (STM) and scanning tunneling spectroscopy. Sections of Nb…
Hysteresis in a quantized, superfluid atomtronic circuit
Stephen Eckel, Jeffrey G. Lee, Fred Jendrzejewski +6
Atomtronics is an emerging interdisciplinary field that seeks new functionality by creating devices and circuits where ultra-cold atoms, often superfluids, play a role analogous to…