US 12,271,714 B2
Quantum computer using switchable network fusions
Daniel Litinski, Palo Alto, CA (US)
Assigned to Psiquantum, Corp., Palo Alto, CA (US)
Filed by Psiquantum, Corp., Palo Alto, CA (US)
Filed on Feb. 10, 2023, as Appl. No. 18/108,552.
Claims priority of provisional application 63/427,083, filed on Nov. 21, 2022.
Claims priority of provisional application 63/308,879, filed on Feb. 10, 2022.
Prior Publication US 2024/0168906 A1, May 23, 2024
Int. Cl. G06F 8/41 (2018.01); G06F 13/40 (2006.01); G06N 10/20 (2022.01); G06N 10/40 (2022.01); G06N 10/70 (2022.01); H04B 10/70 (2013.01); H04Q 11/00 (2006.01)
CPC G06F 8/41 (2013.01) [G06F 13/4022 (2013.01); G06N 10/20 (2022.01); G06N 10/40 (2022.01); G06N 10/70 (2022.01); H04B 10/70 (2013.01); H04Q 11/0005 (2013.01); H04Q 2011/0043 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A circuit comprising:
a resource state interconnect having a plurality of output paths to output a resource state during each of a plurality of operating cycles, wherein each resource state is a quantum system of multiple entangled physical qubits, wherein the physical qubits are photonic qubits, and wherein different physical qubits of the resource state are output on a different ones of the output paths;
a plurality of reconfigurable fusion circuits, each of the plurality of reconfigurable fusion circuits being configured to receive two input physical qubits and to selectably perform either a projective entangling measurement between the two input physical qubits or one of a plurality of single-qubit measurements on each of the two input physical qubits, thereby producing measurement outcome data;
a plurality of routing switches, each routing switch having an input path coupled to a respective one of the output paths of the resource state interconnect and a plurality of output routing paths selectably coupled to the input path, wherein, for each routing switch, the plurality of output routing paths includes:
a first local path, wherein the first local paths of different ones of the routing switches introduce different delays;
a plurality of internal port routing paths; and
a plurality of port transfer paths that exit the circuit; and
a plurality of external port routing paths to receive physical qubits from a plurality of external circuits,
wherein the plurality of reconfigurable fusion circuits includes:
a plurality of local fusion circuits, wherein each local fusion circuit is coupled to respective first local routing paths of two of the routing switches; and
a plurality of port fusion circuits, wherein each port fusion circuit has a first input coupled to one of the internal port routing paths of one of the routing switches and a second input coupled to one of the of the external port routing paths.