ideas/rsfq

Rapid Single Flux Quantum Computation

Wikipedia article: http://en.wikipedia.org/wiki/Rapid_single_flux_quantum

NSA Technology Assement (2005): http://www.nitrd.gov/pubs/nsa/sta.pdf

Mikhail Dorojevets, Paul Bunyk, D i r Zinoviev, and Konstantin Likharev . “COOL-0: Design of an RSFQ Subsystem for Petaflops Computing”, June 1999, IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY

SUPERCONDUCTING CIRCUIT FOR HIGH-SPEED LOOKUP TABLE Alex F. Kirichenko et al March 2011 (patent)

SUNY Stony Brook Overview: http://pavel.physics.sunysb.edu/RSFQ/Research/WhatIs/rsfqwte1.html, http://gamayun.physics.sunysb.edu/RSFQ/Research/WhatIs/rsfqre2m.html

As of fall 2011, Hypres sells an RF reciever (ADC) which can directly digitize signals up to 21 GHz, with closed loop cyrogenics.