123 citations · 468 across the 10 of their papers we have counts for
5 papers · 1 filter
Bifluxon: Fluxon-Parity-Protected Superconducting Qubit
Konstantin Kalashnikov, Wen Ting Hsieh, Wenyuan Zhang +6
We have developed and characterized a symmetry-protected superconducting qubit that offers simultaneous exponential suppression of energy decay from charge and flux noise, and deph…
Protected Josephson Rhombi Chains
Matthew T. Bell, Joshua Paramanandam, Lev B. Ioffe +1
We have studied the low-energy excitations in a minimalistic protected Josephson circuit which contains two basic elements (rhombi) characterized by the periodicity of the Jose…
Quantum Superinductor with Tunable Non-Linearity
M. T. Bell, I. A. Sadovskyy, L. B. Ioffe +2
We report on the realization of a superinductor, a dissipationless element whose microwave impedance greatly exceeds the resistance quantum. The design of the superinductor, implem…
Microwave Spectroscopy of a Cooper-Pair Transistor Coupled to a Lumped-Element Resonator
Matthew T. Bell, Lev B. Ioffe, Michael E. Gershenson
We have studied the microwave response of a single Cooper-pair transistor (CPT) coupled to a lumped-element microwave resonator. The resonance frequency of this circuit, , w…
One-dimensional resistive states in quasi-two-dimensional superconductors
M. Bell, A. Sergeev, V. Mitin +3
We investigate competition between one- and two-dimensional topological excitations - phase slips and vortices - in formation of resistive states in quasi-two-dimensional supercond…