US 12,073,287 B2
Systems for coupling decoders to quantum registers
Poulami Das, Atlanta, GA (US); Nicolas Guillaume Delfosse, Bellevue, WA (US); Christopher Anand Pattison, Seattle, WA (US); Srilatha Manne, Seattle, WA (US); Douglas Carmean, Seattle, WA (US); Krysta Marie Svore, Seattle, WA (US); and Helmut Gottfried Katzgraber, Kirkland, WA (US)
Assigned to Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed by Microsoft Technology Licensing, LLC, Redmond, WA (US)
Filed on Nov. 18, 2019, as Appl. No. 16/687,469.
Claims priority of provisional application 62/883,514, filed on Aug. 6, 2019.
Prior Publication US 2021/0042651 A1, Feb. 11, 2021
Int. Cl. G06N 10/00 (2022.01); G06F 9/30 (2018.01); G06F 9/38 (2018.01); G06F 9/50 (2006.01); G06F 18/2323 (2023.01); G06N 10/40 (2022.01); G06N 10/60 (2022.01); G06N 10/70 (2022.01); G06N 10/80 (2022.01); H03M 13/00 (2006.01); H03M 13/15 (2006.01)
CPC G06N 10/00 (2019.01) [G06F 9/30098 (2013.01); G06F 9/30145 (2013.01); G06F 9/382 (2013.01); G06F 9/3861 (2013.01); G06F 9/3869 (2013.01); G06F 9/5016 (2013.01); G06F 18/2323 (2023.01); G06N 10/40 (2022.01); G06N 10/60 (2022.01); G06N 10/70 (2022.01); G06N 10/80 (2022.01); H03M 13/1575 (2013.01); H03M 13/611 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A quantum computing device, comprising:
at least one quantum register including l logical qubits, where l is a positive integer, and where each of the l logical qubits generates syndromes including at least X syndromes and Z syndromes; and
a set of d decoder blocks coupled to the at least one quantum register, where d<2*l, such that fewer than 2 decoder blocks are used to process each syndrome generated by the l logical qubits and to output error estimations for data qubits of the l logical qubits; and wherein each decoder block comprises g Graph Generator (Gr-Gen) modules, where 0<g<1.