Patents by Inventor Nasser Alidoust
Nasser Alidoust 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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Patent number: 11977956Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: GrantFiled: January 18, 2023Date of Patent: May 7, 2024Assignee: Rigetti & Co, LLCInventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Patent number: 11875222Abstract: In a general aspect, a method executed in a quantum computing system includes performing a calibration process in the quantum computing system to identify a value of a parameter of the quantum computing system. The method also includes analyzing a variation of the value in response to a change in a condition of the quantum computing system, thereby determining a stability of the parameter. The method additionally includes scheduling a recalibration of the parameter based on the stability of the parameter and executing a quantum algorithm in the quantum computing system based on the value of the parameter identified by the calibration process.Type: GrantFiled: September 18, 2018Date of Patent: January 16, 2024Assignee: Rigetti & Co, LLCInventors: Matthew J. Reagor, Christopher Butler Osborn, Alexa Nitzan Staley, Sabrina Sae Byul Hong, Benjamin Jacob Bloom, Alexander Papageorge, Nasser Alidoust
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Publication number: 20230394342Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: ApplicationFiled: January 18, 2023Publication date: December 7, 2023Applicant: Rigetti & Co, LLCInventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Patent number: 11593698Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: GrantFiled: June 3, 2021Date of Patent: February 28, 2023Assignee: Rigetti & Co, LLCInventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Publication number: 20220092461Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: ApplicationFiled: June 3, 2021Publication date: March 24, 2022Applicant: Rigetti & Co, Inc.Inventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Publication number: 20210342729Abstract: In a general aspect, a quantum processor has a modular architecture. In some aspects, a modular quantum processor includes first and second quantum processor chips and a cap structure. The first quantum processor chip is supported on a substrate layer and includes a first plurality of qubit devices. The second quantum processor chip is supported on the substrate layer and includes a second plurality of qubit devices. The cap structure is supported on the first and second quantum processor chips and includes a coupler device that provides coupling between at least one of the first plurality of qubit devices with at least one of the second plurality of qubit devices. In some instances, the coupler device is an active coupler device that is configured to selectively couple at least one of the first plurality of qubit devices with at least one of the second plurality of qubit devices.Type: ApplicationFiled: December 11, 2020Publication date: November 4, 2021Applicant: Rigetti & Co, Inc.Inventors: Michael Justin Gerchick Scheer, Maxwell Benjamin Block, Benjamin Jacob Bloom, Matthew J. Reagor, Alexander Papageorge, Kamal Yadav, Nasser Alidoust, Colm Andrew Ryan, Shane Arthur Caldwell, Yuvraj Mohan, Anthony Polloreno, John Morrison Macaulay, Blake Robert Johnson
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Patent number: 11164103Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: GrantFiled: April 6, 2020Date of Patent: November 2, 2021Assignee: Rigetti & Co, Inc.Inventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Publication number: 20210056454Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: ApplicationFiled: April 6, 2020Publication date: February 25, 2021Applicant: Rigetti & Co, Inc.Inventors: Benjamin Jacob BLOOM, Shane Arthur CALDWELL, Michael James CURTIS, Matthew J. REAGOR, Chad Tyler RIGETTI, Eyob A. SETE, William J. ZENG, Peter Jonathan KARALEKAS, Nikolas Anton TEZAK, Nasser ALIDOUST
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Patent number: 10643143Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: GrantFiled: April 22, 2019Date of Patent: May 5, 2020Assignee: Rigetti & Co, Inc.Inventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Publication number: 20200050958Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: ApplicationFiled: April 22, 2019Publication date: February 13, 2020Applicant: Rigetti & Co, Inc.Inventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Patent number: 10540604Abstract: In a general aspect, three-dimensional integrated multilayer architectures for qubit devices organized in quantum processors are described herein. In some aspects, a quantum processor includes devices residing in multiple physical layers. The quantum processor also includes connections that interconnect the devices in a tree structure topology. A computational state is encoded in child qubit devices in a first layer of the tree structure topology. A quantum control sequence is applied to at least one of the devices to transform the computational state. Applying the quantum control sequence includes using one or more parent qubit devices in a second layer of the tree structure topology to mediate between child qubit devices in the first layer of the tree structure topology. A readout of the transformed computational state may be performed.Type: GrantFiled: May 13, 2019Date of Patent: January 21, 2020Assignee: Rigetti & Co, Inc.Inventors: Alexander Papageorge, Benjamin Jacob Bloom, Anthony Polloreno, Sabrina Sae Byul Hong, Nasser Alidoust
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Patent number: 10282675Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: GrantFiled: March 9, 2018Date of Patent: May 7, 2019Assignee: Rigetti & Co, Inc.Inventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Patent number: 10214797Abstract: Disclosed is a method for producing and identifying a Weyl semimetal. Identification is enabled via a combination of the vacuum ultraviolet (low-photon energy) and soft X-ray (SX) angle resolved photoemission spectroscopy (ARPES). Production generally requires providing high purity raw materials, creating a mixture, heating the mixture in a container at a temperature sufficient for thermal decomposition of an impurity while preventing the possible reaction between the side walls of the container and the raw materials, depositing the resulting compound and a transfer agent onto the bottom surface of the ampule, differentially heating the ampule, and allowing a chemical vapor transport reaction to complete.Type: GrantFiled: November 15, 2016Date of Patent: February 26, 2019Assignee: TRUSTEES OF PRINCETON UNIVERSITYInventors: Suyang Xu, Ilya Belopolski, Nasser Alidoust, Madhab Neupane, Shuang Jia, M. Zahid Hasan
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Publication number: 20180260732Abstract: In a general aspect, calibration is performed in a quantum computing system. In some cases, domains of a quantum computing system are identified, where the domains include respective domain control subsystems and respective subsets of quantum circuit devices in a quantum processor of the quantum computing system. Sets of measurements are obtained from one of the domains and stored in memory. Device characteristics of the quantum circuit devices of the domain are obtained based on the set of measurements, and the device characteristics are stored in a memory of the control system. Quantum logic control parameters for the subset of quantum circuit devices of the domain are obtained based on the set of measurements and stored in memory.Type: ApplicationFiled: March 9, 2018Publication date: September 13, 2018Applicant: Rigetti & Co, Inc.Inventors: Benjamin Jacob Bloom, Shane Arthur Caldwell, Michael James Curtis, Matthew J. Reagor, Chad Tyler Rigetti, Eyob A. Sete, William J. Zeng, Peter Jonathan Karalekas, Nikolas Anton Tezak, Nasser Alidoust
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Publication number: 20170138844Abstract: Disclosed is a method for producing and identifying a Weyl semimetal. Identification is enabled via a combination of the vacuum ultraviolet (low-photon energy) and soft X-ray (SX) angle resolved photoemission spectroscopy (ARPES). Production generally requires providing high purity raw materials, creating a mixture, heating the mixture in a container at a temperature sufficient for thermal decomposition of an impurity while preventing the possible reaction between the side walls of the container and the raw materials, depositing the resulting compound and a transfer agent onto the bottom surface of the ampule, differentially heating the ampule, and allowing a chemical vapor transport reaction to complete.Type: ApplicationFiled: November 15, 2016Publication date: May 18, 2017Inventors: Suyang Xu, Ilya Belopolski, Nasser Alidoust, Madhab Neupane, Shuang Jia, M. Zahid Hasan