US 12,093,128 B2
Systems and methods for efficient error mitigation in quantum circuit execution using parity checks and classical feedback
Pradeep Niroula, College Park, MD (US); Ruslan Shaydulin, New York, NY (US); and Marco Pistoia, Amawalk, NY (US)
Assigned to JPMORGAN CHASE BANK, N.A., New York, NY (US)
Filed by JPMORGAN CHASE BANK, N.A., New York, NY (US)
Filed on Nov. 30, 2022, as Appl. No. 18/060,235.
Prior Publication US 2024/0176694 A1, May 30, 2024
Int. Cl. H03M 13/00 (2006.01); G06F 11/10 (2006.01)
CPC G06F 11/10 (2013.01) 15 Claims
OG exemplary drawing
 
1. A method for efficient error mitigation in quantum circuit execution, comprising:
executing, by a quantum computer, a quantum circuit for a quantum optimization algorithm, the quantum circuit comprising a plurality of measurement points for measuring a parity of a quantum state, and termination instructions for stopping execution of the quantum optimization algorithm;
preparing, by the quantum computer, the quantum state;
executing, by the quantum computer, a first step of the quantum optimization algorithm;
measuring, by the quantum computer, a first parity of the quantum state;
returning, by the quantum computer, the first parity to a classical computer program;
executing, by the quantum computer, a second step of the quantum optimization algorithm;
measuring, by the quantum computer, a second parity of the quantum state;
returning, by the quantum computer, the second parity to the classical computer program, wherein the classical computer program is configured to compare the first parity and the second parity;
receiving, by the quantum computer, an instruction to execute the termination instructions from the classical computer program in response to first parity and the second parity being different; and
executing, by the quantum computer, the termination instructions.