A superconducting flux-flow oscillator of terahertz range

Josephson flux - flow oscillator

Nonresonant holeburning in the Terahertz range: Brownian oscillator model.

The response to the field sequence of nonresonant hole burning, a pump-wait-probe experiment originally designed to investigate slow relaxation in complex systems, is calculated for a model of Brownian oscillators, thus including inertial effects. In the overdamped regime the model predictions are very similar to those of the purely dissipative stochastic models investigated earlier, including ...

Long-range coupling and scalable architecture for superconducting flux qubits

Austin G. Fowler,1 William F. Thompson,1 Zhizhong Yan,1 Ashley M. Stephens,2 B. L. T. Plourde,3 and Frank K. Wilhelm1 1Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1 2Centre for Quantum Computer Technology, University of Melbourne, Victoria 3010, Australia 3Department of Physics, Syracuse University, Syracuse, New York 13244, USA !Received 20 April 20...

Long-range and selective coupler for superconducting flux qubits

We propose a qubit-qubit coupling scheme for superconducting flux quantum bits (qubits), where a quantized Josephson junction resonator and microwave irradiation are utilized. The junction is used as a tunable inductance controlled by changing the bias current flowing through the junction, and thus the circuit works as a tunable resonator. This enables us to make any qubits interact with the re...

High Tc Superconducting Flux Flow Transistors : Potential Performances and Problems