Error correction in quantum computing system
AssigneeNorthrop Grumman Systems Corporation
InventorsAaron A. Pesetski, James E. Baumgardner
Life of this patent
Estimating the term…
Abstract
Systems and methods are provided for performing a quantum error correction. An error correction is performed on each of a plurality of qubit sets restore a desired basis state of the qubit set. Each qubit set corresponds to an associated logical qubit. A number of corrected qubits at each of the plurality of qubit sets are recorded. A first set of the plurality of logical qubits having a first state and a second set of the plurality of logical qubits having a second state are determined. One of the first set of logical qubits and the second set of logical qubits are corrected according to the recorded numbers of corrected qubits.
Claims20
A method for performing a quantum error correction comprising:
- performing an error correction on each of a plurality of qubit sets to restore a desired basis state of the qubit set, each qubit set corresponding to an associated logical qubit of a plurality of logical qubits;
- recording a number of corrected qubits at each of the plurality of qubit sets;
- determining a first set of the plurality of logical qubits having a first state and a second set of the plurality of logical qubits having a second state;
- and
- correcting one of the first set of logical qubits and the second set of logical qubits according to the recorded numbers of corrected qubits.
A system for storing a quantum bit of information, the system comprising:
- a quantum storage system comprising a plurality of physical structures configured to collectively store a quantum bit of interest as a plurality of qubits;
- and
- a system control comprising:
- an error correction component configured to perform an error correction on each of a plurality of qubit sets formed from the plurality of qubits, the qubit sets corresponding to respective logical qubits of a plurality of logical qubits;
- and
- a measurement arbitration component that records a number and type of errors at each of the plurality of qubit sets and an associated type of each correction, determines a plurality of sets of logical qubits having respective associated states and corrects one of the plurality of sets of logical qubits according to the recorded numbers of corrected qubits and the recorded types of corrections associated with the logical qubits comprising each of the plurality of sets.
A method for quantum error correction comprising:
- performing a first error correction on each of a plurality of qubit sets, each qubit set representing an associated logical qubit of a plurality of logical qubits;
- determining a first set of the plurality of logical qubits having a first state and a second set of the plurality of logical qubits having a second state, the first set of logical qubits being larger than the second set;
- and
- correcting the first set of logical qubits to the second state.
Dependencies are inferred from the claim text.