Patents by Inventor Marcus Palmer da Silva
Marcus Palmer da Silva 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).
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Publication number: 20240146307Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.Type: ApplicationFiled: April 26, 2023Publication date: May 2, 2024Applicant: Rigetti & Co, LLCInventors: Eyob A. Sete, Nicolas Didier, Marcus Palmer da Silva, Chad Tyler Rigetti, Matthew J. Reagor, Shane Arthur Caldwell, Nikolas Anton Tezak, Colm Andrew Ryan, Sabrina Sae Byul Hong, Prasahnt Sivarajah, Alexander Papageorge, Deanna Margo Abrams
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Patent number: 11960972Abstract: In a general aspect, input data for a computer process are preprocessed by a preprocessor unit that includes a quantum processor. In some aspects, a preprocessor unit obtains input data for a computer process that is configured to run on a computer processing unit. Randomized parameter values are computed for variable parameters of a quantum logic circuit based on the input data. A classical processor in the preprocessor unit computes the randomized parameter values from the input data and a set of random numbers. A quantum processor in the preprocessor unit produces quantum processor output data by executing the quantum logic circuit having the randomized parameter values assigned to the variable parameters. Preprocessed data generated based on the quantum processor output data are then provided as the input for the computer process configured to run on the computer processing unit.Type: GrantFiled: January 6, 2023Date of Patent: April 16, 2024Assignee: Rigetti & Co, LLCInventors: Johannes Sebastian Otterbach, Christopher Mogan Wilson, Marcus Palmer da Silva, Nikolas Anton Tezak, Gavin Earl Crooks
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Patent number: 11900219Abstract: In a general aspect, a gate is formed for a quantum processor. In some implementations, an arbitrary program is received. The arbitrary program includes a first sequence of quantum logic gates, which includes a parametric XY gate. A native gate set is identified, which includes a set of quantum logic gates associated with a quantum processing unit. A second sequence of quantum logic gates corresponding to the parametric XY gate is identified, which includes a parametric quantum logic gate. Each of the quantum logic gates in the second sequence is selected from the native gate set. A native program is generated. The native program includes a third sequence of quantum logic gates. The third sequence of quantum logic gates corresponds to the first sequence of quantum logic gates and includes the second sequence of quantum logic gates. The native program is provided for execution by the quantum processing unit.Type: GrantFiled: January 18, 2023Date of Patent: February 13, 2024Assignee: Rigetti & Co, LLCInventors: Colm Andrew Ryan, Eric Christopher Peterson, Marcus Palmer da Silva, Michael Justin Gerchick Scheer, Deanna Margo Abrams
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Publication number: 20230368061Abstract: In a general aspect, a quantum streaming kernel processes a data stream. In some aspects, an input stream of data is converted to an output stream of data by repeatedly receiving new portions of the input stream; encoding each new portion into an internal quantum state of a quantum processor; measuring a first part of the internal quantum state while maintaining coherence of a second part of the internal quantum state; and producing the output stream of data based on the measurements. In some cases, a history of the input stream is preserved by the coherence of the internal quantum state, and the measurements contain information based on the history of the input stream.Type: ApplicationFiled: May 15, 2023Publication date: November 16, 2023Applicant: Rigetti & Co, LLCInventors: Nikolas Anton Tezak, Marcus Palmer da Silva, Robert Stanley Smith, Christopher Mogan Wilson
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Patent number: 11694108Abstract: In a general aspect, a quantum streaming kernel processes a data stream. In some aspects, an input stream of data is converted to an output stream of data by repeatedly receiving new portions of the input stream; encoding each new portion into an internal quantum state of a quantum processor; measuring a first part of the internal quantum state while maintaining coherence of a second part of the internal quantum state; and producing the output stream of data based on the measurements. In some cases, a history of the input stream is preserved by the coherence of the internal quantum state, and the measurements contain information based on the history of the input stream.Type: GrantFiled: February 5, 2021Date of Patent: July 4, 2023Assignee: Rigetti & Co, LLCInventors: Nikolas Anton Tezak, Marcus Palmer da Silva, Robert Stanley Smith, Christopher Mogan Wilson
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Publication number: 20230196172Abstract: A method of probabilistically canceling noise in a measurement-based quantum device includes obtaining a sequence of ideal measurements included within a quantum algorithm and selecting a sequence of noisy measurements for emulating the sequence of ideal measurements. Each of the noisy measurements in the selected sequence approximates a corresponding one of the ideal measurements and is adjusted by a quantum correction, where the noisy measurements are selected according to a carefully chosen distribution to cancel known features of noise in those same noisy measurements in the sequence.Type: ApplicationFiled: December 22, 2021Publication date: June 22, 2023Inventors: Adam Edward PAETZNICK, Marcus Palmer da SILVA, Mohamed Ayman EL MANDOUH
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Patent number: 11677402Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.Type: GrantFiled: August 24, 2021Date of Patent: June 13, 2023Assignee: Rigetti & Co, LLCInventors: Eyob A. Sete, Nicolas Didier, Marcus Palmer da Silva, Chad Tyler Rigetti, Matthew J. Reagor, Shane Arthur Caldwell, Nikolas Anton Tezak, Colm Andrew Ryan, Sabrina Sae Byul Hong, Prasahnt Sivarajah, Alexander Papageorge, Deanna Margo Abrams
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Patent number: 11562284Abstract: In a general aspect, a gate is formed for a quantum processor. In some implementations, an arbitrary program is received. The arbitrary program includes a first sequence of quantum logic gates, which includes a parametric XY gate. A native gate set is identified, which includes a set of quantum logic gates associated with a quantum processing unit. A second sequence of quantum logic gates corresponding to the parametric XY gate is identified, which includes a parametric quantum logic gate. Each of the quantum logic gates in the second sequence is selected from the native gate set. A native program is generated. The native program includes a third sequence of quantum logic gates. The third sequence of quantum logic gates corresponds to the first sequence of quantum logic gates and includes the second sequence of quantum logic gates. The native program is provided for execution by the quantum processing unit.Type: GrantFiled: October 19, 2020Date of Patent: January 24, 2023Assignee: Rigetti & Co, LLCInventors: Colm Andrew Ryan, Eric Christopher Peterson, Marcus Palmer da Silva, Michael Justin Gerchick Scheer, Deanna Margo Abrams
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Patent number: 11551127Abstract: In a general aspect, input data for a computer process are preprocessed by a preprocessor unit that includes a quantum processor. In some aspects, a preprocessor unit obtains input data for a computer process that is configured to run on a computer processing unit. Randomized parameter values are computed for variable parameters of a quantum logic circuit based on the input data. A classical processor in the preprocessor unit computes the randomized parameter values from the input data and a set of random numbers. A quantum processor in the preprocessor unit produces quantum processor output data by executing the quantum logic circuit having the randomized parameter values assigned to the variable parameters. Preprocessed data generated based on the quantum processor output data are then provided as the input for the computer process configured to run on the computer processing unit.Type: GrantFiled: May 9, 2019Date of Patent: January 10, 2023Assignee: Rigetti & Co, LLCInventors: Johannes Sebastian Otterbach, Christopher Mogan Wilson, Marcus Palmer da Silva, Nikolas Anton Tezak, Gavin Earl Crooks
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Patent number: 11521103Abstract: In a general aspect, a plurality of distinct quantum processor unit (QPU) instances are utilized to execute a quantum computation. Hybrid classical-quantum computing methods and systems are described which utilize the plurality of QPU instances in the execution of quantum computations.Type: GrantFiled: December 12, 2018Date of Patent: December 6, 2022Assignee: Rigetti & Co, LLCInventors: Matthew J. Reagor, Blake Robert Johnson, Marcus Palmer da Silva, Johannes Sebastian Otterbach, Nikolas Anton Tezak, Chad Tyler Rigetti
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Patent number: 11521104Abstract: A quantum computing system computes soft information quantifying an effect of soft noise on multiple rounds of a syndrome measurement that is output by a quantum measurement circuit. The soft noise arises due to imperfections in a readout device that introduce variability in repeated measurements of ancilla qubits and is distinct from quantum noise arising from bit-flips in data qubits that are indirectly measured by the ancilla qubits. The quantum computing system applying decoding logic to identify fault locations within the quantum measurement circuit based on the computed soft information.Type: GrantFiled: February 19, 2021Date of Patent: December 6, 2022Assignee: Microsoft Licensing Technology, LLCInventors: Nicolas Guillaume Delfosse, Christopher Anand Pattison, Michael Beverland, Marcus Palmer Da Silva
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Publication number: 20220269963Abstract: A quantum computing system computes soft information quantifying an effect of soft noise on multiple rounds of a syndrome measurement that is output by a quantum measurement circuit. The soft noise arises due to imperfections in a readout device that introduce variability in repeated measurements of ancilla qubits and is distinct from quantum noise arising from bit-flips in data qubits that are indirectly measured by the ancilla qubits.Type: ApplicationFiled: February 19, 2021Publication date: August 25, 2022Inventors: Nicolas Guillaume DELFOSSE, Christopher Anand PATTISON, Michael BEVERLAND, Marcus Palmer DA SILVA
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Publication number: 20220231690Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.Type: ApplicationFiled: August 24, 2021Publication date: July 21, 2022Applicant: Rigetti & Co, LLCInventors: Eyob A. Sete, Nicolas Didier, Marcus Palmer da Silva, Chad Tyler Rigetti, Matthew J. Reagor, Shane Arthur Caldwell, Nikolas Anton Tezak, Colm Andrew Ryan, Sabrina Sae Byul Hong, Prasahnt Sivarajah, Alexander Papageorge, Deanna Margo Abrams
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Publication number: 20220164693Abstract: In a general aspect, a quantum streaming kernel processes a data stream. In some aspects, an input stream of data is converted to an output stream of data by repeatedly receiving new portions of the input stream; encoding each new portion into an internal quantum state of a quantum processor; measuring a first part of the internal quantum state while maintaining coherence of a second part of the internal quantum state; and producing the output stream of data based on the measurements. In some cases, a history of the input stream is preserved by the coherence of the internal quantum state, and the measurements contain information based on the history of the input stream.Type: ApplicationFiled: February 5, 2021Publication date: May 26, 2022Applicant: Rigetti & Co, Inc.Inventors: Nikolas Anton Tezak, Marcus Palmer da Silva, Robert Stanley Smith, Christopher Mogan Wilson
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Publication number: 20210294680Abstract: A system and method for randomly accessing pairs of quantum gates associated with any given quantum gate included in a set of quantum instructions allows for the reduction of unitary errors when executing the quantum instructions. The system generates a set of modified quantum instructions using the randomly accessed pair of quantum gates. The modified quantum instructions produce the same result as the unmodified quantum instructions when executed on a quantum processing system that does not introduce error when executing the instructions. Additionally, the modified quantum instructions produce a more accurate result with less error than the unmodified quantum instructions when executed on a quantum processing system that introduces error.Type: ApplicationFiled: August 12, 2019Publication date: September 23, 2021Inventor: Marcus Palmer Da Silva
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Patent number: 11108398Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.Type: GrantFiled: October 25, 2019Date of Patent: August 31, 2021Assignee: Rigetti & Co, Inc.Inventors: Eyob A. Sete, Nicolas Didier, Marcus Palmer da Silva, Chad Tyler Rigetti, Matthew J. Reagor, Shane Arthur Caldwell, Nikolas Anton Tezak, Colm Andrew Ryan, Sabrina Sae Byul Hong, Prasahnt Sivarajah, Alexander Papageorge, Deanna Margo Abrams
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Patent number: 10846366Abstract: In a general aspect, values of input parameters for a quantum approximate optimization algorithm (QAOA) are selected by a Bayesian optimizer. The QAOA can be configured to solve a combinatorial optimization problem (COP), such as Maximum Cut. A hybrid classical-quantum computing system can be used to execute the QAOA and select the input parameters.Type: GrantFiled: December 12, 2018Date of Patent: November 24, 2020Assignee: Rigetti & Co, Inc.Inventors: Johannes Sebastian Otterbach, Jonathan Ward, Marcus Palmer da Silva, Nicholas C. Rubin
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Publication number: 20200204181Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.Type: ApplicationFiled: October 25, 2019Publication date: June 25, 2020Applicant: Rigetti & Co, Inc.Inventors: Eyob A. Sete, Nicolas Didier, Marcus Palmer da Silva, Chad Tyler Rigetti, Matthew J. Reagor, Shane Arthur Caldwell, Nikolas Anton Tezak, Colm Andrew Ryan, Sabrina Sae Byul Hong, Prasahnt Sivarajah, Alexander Papageorge, Deanna Margo Abrams
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Patent number: 10483980Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.Type: GrantFiled: June 19, 2018Date of Patent: November 19, 2019Assignee: Rigetti & Co, Inc.Inventors: Eyob A. Sete, Nicolas Didier, Marcus Palmer da Silva, Chad Tyler Rigetti, Matthew J. Reagor, Shane Arthur Caldwell, Nikolas Anton Tezak, Colm Andrew Ryan, Sabrina Sae Byul Hong, Prasahnt Sivarajah, Alexander Papageorge, Deanna Margo Abrams
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Publication number: 20190007051Abstract: In a general aspect, a quantum logic gate is performed in a quantum computing system. In some cases, a pair of qubits are defined in a quantum processor; the pair of qubits can include a first qubit defined by a first qubit device in the quantum processor and a second qubit defined by a tunable qubit device in the quantum processor. A quantum logic gate can be applied to the pair of qubits by communicating a control signal to a control line coupled to the tunable qubit device. The control signal can be configured to modulate a transition frequency of the tunable qubit device at a modulation frequency, and the modulation frequency can be determined based on a transition frequency of the first qubit device.Type: ApplicationFiled: June 19, 2018Publication date: January 3, 2019Applicant: Rigetti & Co, Inc.Inventors: Eyob A. Sete, Nicolas Didier, Marcus Palmer da Silva, Chad Tyler Rigetti, Matthew J. Reagor, Shane Arthur Caldwell, Nikolas Anton Tezak, Colm Andrew Ryan, Sabrina Sae Byul Hong, Prasahnt Sivarajah, Alexander Papageorge, Deanna Margo Abrams