Patent ID: 11893454
Assignee: RIGETTI & CO, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A method of performing quantum error correction in a quantum computing system comprising a quantum processor cell, a signal delivery system and a control system, the method comprising:
encoding information in data qubits residing in a layer comprising a two-dimensional device lattice in the quantum processor cell;
by operation of the control system:
applying a two-dimensional color code in the two-dimensional device lattice to detect errors in the data qubits;
allocating neighboring qubits in distinct layers of a three-dimensional device lattice in the quantum processor cell for a three-dimensional color code;
performing dimensional extension to extend the two-dimensional color code to the three-dimensional color code such that quantum information is transferred from the two-dimensional color code to the three-dimensional color code; and
applying the three-dimensional color code in the three-dimensional device lattice,

wherein the three-dimensional device lattice comprises devices whose collective spatial arrangement corresponds to a three-dimensional lattice structure, and the two-dimensional device lattices comprise devices whose collective spatial arrangements correspond to respective two-dimensional lattice structures,
wherein the signal delivery system transfers signals between the quantum processor cell and the control system.