US 12,341,507 B2
Superconducting multi-way switches
Matthew Beck, Danbury, CT (US); Santino Carnevale, Stamford, CT (US); and Marco Turchetti, White Plains, NY (US)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Sep. 27, 2023, as Appl. No. 18/475,368.
Prior Publication US 2025/0105841 A1, Mar. 27, 2025
Int. Cl. H03K 17/92 (2006.01); H03H 7/38 (2006.01)
CPC H03K 17/92 (2013.01) [H03H 7/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a switch circuit comprising a plurality of signal input/output ports, and a plurality of switch nodes, each switch node comprising a superconducting loop which comprises a plurality of Josephson junctions arranged in a ring configuration; and
control lines configured to selectively apply flux bias control signals to the switch nodes;
wherein the plurality of switch nodes is arranged to selectively configure a signal routing path between any pairwise combination of signal input/output ports of the plurality of signal input/output ports, in response to flux bias control signals selectively applied to the switch nodes.