Quantum filter has 20,000 Josephson junctions

(Phys.org)—A team of researchers at CSIRO Manufacturing, in Australia has created several test quantum filters with arrays having as many as 20,000 Josephson junctions. In their paper published in Superconductor Science and Technology, the team describes their filters, how they were constructed, tuned and tested and several applications that they believe may benefit from their use.