174 citations · 398 across the 12 of their papers we have counts for
8 papers · 1 filter
Breather decay into a vortex/anti-vortex pair in a Josephson Ladder
K. Segall, P. Williams, O. Svitelskiy +4
We present experimental evidence for a new behavior which involves discrete breathers and vortices in a Josephson Ladder. Breathers can be visualized as the creation and subsequent…
Numerical simulation of thermal noise in Josephson circuits
Kenneth Segall, Dan Schult, Ushnish Ray +1
We present a method to numerically add thermal noise to the equations of motion for a circuit of Josephson junctions. A new noise term, which we call "linearly interpolated Gaussia…
Josephson junction simulation of neurons
Patrick Crotty, Daniel Schult, Ken Segall
With the goal of understanding the intricate behavior and dynamics of collections of neurons, we present superconducting circuits containing Josephson junctions that model biologic…
Switching Current Measurements in Josephson Rings
K. Segall, A. Dioguardi, N. Fernandes +1
We present switching current measurements in niobium-aluminum oxide-niobium underdamped Josephson rings. Underdamped Josephson rings display hysteretic current-voltage curves which…
Thermal depinning of fluxons in discrete Josephson rings
J. J. Mazo, F. Naranjo, K. Segall
We study the thermal depinning of single fluxons in rings made of Josephson junctions. Due to thermal fluctuations a fluxon can be excited from its energy minima and move through t…
Multiple junction biasing of superconducting tunnel junction detectors
K. Segall, J. J. Mazo, T. P. Orlando
We describe a new biasing scheme for single photon detectors based on superconducting tunnel junctions. It replaces a single detector junction with a circuit of three junctions and…
Dynamics and Energy Distribution of Non-Equilibrium Quasiparticles in Superconducting Tunnel Junctions
K. Segall, C. Wilson, L. Li +4
We present a full theoretical and experimental study of the dynamics and energy distribution of non-equilibrium quasiparticles in superconducting tunnel junctions (STJs). STJs are…
DC measurements of macroscopic quantum levels in a superconducting qubit structure with a time-ordered meter
D. S. Crankshaw, K. Segall, D. Nakada +7
DC measurements are made in a superconducting, persistent current qubit structure with a time-ordered meter. The persistent-current qubit has a double-well potential, with the two…