Patents by Inventor Theodore James Yoder

Theodore James Yoder has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250181952
    Abstract: According to an embodiment, a structure for a qubit architecture is presented. The structure may include a plurality of qubits. The structure may include a plurality of couplings between each qubits. The couplings are arranged based on a relationship between each qubit and its placement on a torus. The coupling for each qubit comprises coupling to four nearest neighbor qubits on the torus and coupling to two cross-coupled qubits based on a definition and a set of parameters of a bivariate bicycle code. Methods for using and manufacturing the qubit architecture are additionally presented.
    Type: Application
    Filed: December 3, 2023
    Publication date: June 5, 2025
    Inventors: Sergey Bravyi, Andrew W. Cross, Jay Michael Gambetta, Dmitri Maslov, Patrick Julian Tassilo Rall, Kevin Tien, Theodore James Yoder
  • Publication number: 20250181953
    Abstract: According to an embodiment of the present invention, a system may include a quantum memory module, a magic state preparation module, and a quantum computation module. The quantum computation module is coupled to either the quantum memory module or the quantum magic state preparation module using an 1-coupler. This may enable optimization of the hardware to more efficiently perform quantum computations. According to another embodiment of the present invention, a modular system may include a plurality of quantum systems, where the quantum systems are connected using 1-couplers according to a tree diagram. This may enable optimization of the hardware to more efficiently perform quantum computations.
    Type: Application
    Filed: December 3, 2023
    Publication date: June 5, 2025
    Inventors: Andrew W. Cross, Shawn Anthony Hall, Patrick Julian Tassilo Rall, Theodore James Yoder
  • Patent number: 12271786
    Abstract: According to an embodiment of the present invention, a method, system, and computer program product for preparing a CZ state for use in magic state distillation. The embodiment may include initializing a code state across data qubits. The embodiment may include measuring a CZ operator of the codes state on at least one ancilla qubit proximal to the data qubits. The embodiment may include performing additional quantum operations with the CZ state based on the measurement of the at least one ancilla qubit.
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: April 8, 2025
    Assignee: International Business Machines Corporation
    Inventors: Benjamin James Brown, Andrew W. Cross, Riddhi Swaroop Gupta, Tomas Raphael Jochym-O'Connor, Theodore James Yoder
  • Publication number: 20240152335
    Abstract: According to an embodiment of the present invention, a method, system, and computer program product for preparing a CZ state for use in magic state distillation. The embodiment may include initializing a code state across data qubits. The embodiment may include measuring a CZ operator of the codes state on at least one ancilla qubit proximal to the data qubits. The embodiment may include performing additional quantum operations with the CZ state based on the measurement of the at least one ancilla qubit.
    Type: Application
    Filed: November 7, 2022
    Publication date: May 9, 2024
    Inventors: Benjamin James Brown, Andrew W. Cross, Riddhi Swaroop Gupta, Tomas Raphael Jochym-O'Connor, Theodore James Yoder
  • Patent number: 11803441
    Abstract: Techniques regarding calibrating one or more quantum decoder algorithms are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a correlation inversion decoder component that can calibrate a quantum decoder algorithm for decoding a quantum error-correcting code by estimating hyperedge probabilities of a decoding hypergraph that are consistent with a syndrome dataset.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: October 31, 2023
    Assignee: International Business Machines Corporation
    Inventors: Edward Hong Chen, Andrew W. Cross, Youngseok Kim, Neereja Sundaresan, Maika Takita, Antonio Corcoles-Gonzalez, Theodore James Yoder
  • Publication number: 20230299791
    Abstract: Techniques regarding quantum error correction are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a maximum-likelihood decoder component that executes a maximum-likelihood decoding algorithm to determine an error correction based on a decoding hypergraph that characterizes error-sensitive events associated with a quantum error-correcting code executed on a quantum circuit.
    Type: Application
    Filed: May 25, 2023
    Publication date: September 21, 2023
    Inventor: Theodore James Yoder
  • Publication number: 20230291419
    Abstract: Techniques regarding quantum error correction are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a maximum-likelihood decoder component that executes a maximum-likelihood decoding algorithm to determine an error correction based on a decoding hypergraph that characterizes error-sensitive events associated with a quantum error-correcting code executed on a quantum circuit.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 14, 2023
    Inventor: Theodore James Yoder
  • Patent number: 11736122
    Abstract: Techniques regarding quantum error correction are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a maximum-likelihood decoder component that executes a maximum-likelihood decoding algorithm to determine an error correction based on a decoding hypergraph that characterizes error-sensitive events associated with a quantum error-correcting code executed on a quantum circuit.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: August 22, 2023
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Theodore James Yoder
  • Publication number: 20230196156
    Abstract: Techniques regarding compiling quantum circuits with parallelized entangled measurements are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a circuit compilation component that can compile one or more quantum circuits for a hybrid quantum-classical algorithm. The one or more quantum circuits can include a mid-circuit operation to parallelize entangled measurements.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 22, 2023
    Inventors: Edward Hong Chen, Andrew Eddins, Theodore James Yoder
  • Publication number: 20230094612
    Abstract: Techniques regarding calibrating one or more quantum decoder algorithms are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a correlation inversion decoder component that can calibrate a quantum decoder algorithm for decoding a quantum error-correcting code by estimating hyperedge probabilities of a decoding hypergraph that are consistent with a syndrome dataset.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Edward Hong Chen, Andrew W. Cross, Youngseok Kim, Neereja Sundaresan, Maika Takita, Antonio Corcoles-Gonzalez, Theodore James Yoder
  • Patent number: 11455207
    Abstract: A method of error correction for a quantum computer includes identifying each of a plurality of physical qubits arranged in a lattice pattern over a surface in a quantum processor of the quantum computer as a one of a data qubit, an ancilla qubit or a flag qubit to define a plurality of data qubits, ancilla qubits and flag qubits. Each pair of interacting data qubits interact with a flag qubit and adjacent flag qubits both interact with a common ancilla qubit. The method further includes performing measurements of weight-four stabilizers, weight-two stabilizers, or both of a surface code formed using at least a sub-plurality of the plurality of physical qubits, or performing measurements of weight-four Bacon-Shor type gauge operators; and correcting fault-tolerantly quantum errors in one or more of the at least sub-plurality of physical qubits based on a measurement from at least one flag qubit.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 27, 2022
    Assignee: International Business Machines Corporation
    Inventors: Christopher Chamberland, Guanyu Zhu, Theodore James Yoder, Andrew W. Cross
  • Patent number: 11449783
    Abstract: Techniques regarding encoding a quantum circuit to a trivalent lattice scheme to identify flag qubit outcomes are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a graph component that can encode a quantum circuit to a trivalent lattice that maps an ancilla qubit to a plurality of data qubits via a plurality of flag qubits based on a connectivity scheme of the quantum circuit.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: September 20, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Christopher Chamberland, Theodore James Yoder, Andrew W. Cross, Guanyu Zhu
  • Publication number: 20210125094
    Abstract: Techniques regarding encoding a quantum circuit to a trivalent lattice scheme to identify flag qubit outcomes are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a graph component that can encode a quantum circuit to a trivalent lattice that maps an ancilla qubit to a plurality of data qubits via a plurality of flag qubits based on a connectivity scheme of the quantum circuit.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 29, 2021
    Inventors: Christopher Chamberland, Theodore James Yoder, Andrew W. Cross, Guanyu Zhu
  • Publication number: 20210019223
    Abstract: A method of error correction for a quantum computer includes identifying each of a plurality of physical qubits arranged in a lattice pattern over a surface in a quantum processor of the quantum computer as a one of a data qubit, an ancilla qubit or a flag qubit to define a plurality of data qubits, ancilla qubits and flag qubits. Each pair of interacting data qubits interact with a flag qubit and adjacent flag qubits both interact with a common ancilla qubit. The method further includes performing measurements of weight-four stabilizers, weight-two stabilizers, or both of a surface code formed using at least a sub-plurality of the plurality of physical qubits, or performing measurements of weight-four Bacon-Shor type gauge operators; and correcting fault-tolerantly quantum errors in one or more of the at least sub-plurality of physical qubits based on a measurement from at least one flag qubit.
    Type: Application
    Filed: July 15, 2019
    Publication date: January 21, 2021
    Inventors: Christopher Chamberland, Guanyu Zhu, Theodore James Yoder, Andrew W. Cross