Patents by Inventor Ivano Tavernelli
Ivano Tavernelli 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: 11966813Abstract: Embodiments are provided for error mitigation in quantum programs. In some embodiments, a system can include a processor that executes computer-executable components stored in memory. The computer-executable components include a compilation component that causes encoding of one or more qubits according to a circular repetition code at a time after operations on the one or more qubits and before readout.Type: GrantFiled: March 19, 2021Date of Patent: April 23, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Panagiotis Barkoutsos, Jakob Max Guenther, Francesco Tacchino, James Robin Wootton, Ivano Tavernelli
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Publication number: 20240119325Abstract: Techniques for facilitating utilizing a quantum computing circuit in conjunction with a stochastic control problem are provided. In one embodiment, a system is provided that comprises a quantum computing circuit that prepares a quantum state that represents a stochastic control problem. The system can further comprise a classical computing device that determines parameters for the quantum computing circuit.Type: ApplicationFiled: June 21, 2023Publication date: April 11, 2024Inventors: Stefan WOERNER, Panagiotis BARKOUTSOS, Ivano TAVERNELLI
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Publication number: 20240119328Abstract: The present disclosure relates to a quantum system of dimension M comprising a transmon device. The transmon device is in an initial state ?ini which is restricted to a state ?S of a N-dimensional quantum system embedded in the quantum system, where N<M. The transmon device is configured to receive a sequence of pulses for transforming the initial state ?ini to a state ?ext of the quantum system. The transmon device is connected to a readout that is configured to perform a projection-valued measure (PVM) of the transmon device in its state ?ext.Type: ApplicationFiled: January 25, 2023Publication date: April 11, 2024Inventors: Daniel Miller, Laurin Elias Fischer, Panagiotis Barkoutsos, Francesco Tacchino, Daniel Josef Egger, Ivano Tavernelli
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Patent number: 11942192Abstract: Techniques facilitating density-functional theory determinations using a quantum computing system are provided. A system can comprise a first computing processor and a second computing processor. The first computing processor can generate a density-functional theory determination. The second computing processor can input a quantum density into the density-functional theory determination. The first computing processor can be operatively coupled to the second computing processor. Further, the first computing processor can be a classical computer and the second computing processor can be a quantum computer.Type: GrantFiled: July 13, 2020Date of Patent: March 26, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ivano Tavernelli, Panagiotis Barkoutsos, Pauline Ollitrault, Max Rossmannek
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Patent number: 11816594Abstract: Techniques for facilitating utilizing a quantum computing circuit in conjunction with a stochastic control problem are provided. In one embodiment, a system is provided that comprises a quantum computing circuit that prepares a quantum state that represents a stochastic control problem. The system can further comprise a classical computing device that determines parameters for the quantum computing circuit.Type: GrantFiled: September 24, 2018Date of Patent: November 14, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Stefan Woerner, Panagiotis Barkoutsos, Ivano Tavernelli
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Patent number: 11803611Abstract: Techniques of facilitating improved computational efficiency in Variational Quantum Eigensolver calculations by quantum computing devices. In one example, a system can comprise a processor that executes computer executable components stored in memory. The computer executable components can comprise: a distribution component; and a feedback component. The distribution component can set a Pauli-dependent sample budget for a Pauli term of an operator to unevenly distribute a total sample budget for evaluating an expected value of the operator among a plurality of Pauli terms composing the operator. The plurality of Pauli terms can comprise the Pauli term. The feedback component can evaluate compatibility between a prescreening variance for the Pauli term and a production variance of the Pauli term generated using the Pauli-dependent sample budget.Type: GrantFiled: December 4, 2020Date of Patent: October 31, 2023Assignee: International Business Machines CorporationInventors: Guglielmo Mazzola, Pauline Ollitrault, Ivano Tavernelli
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Patent number: 11728011Abstract: A method of designing a molecule for an environment of interest using a quantum computer includes providing a linear superposition of a plurality of molecular species, the plurality of molecular species being initially weighted by equal initial coefficients; determining a lowest-energy quantum state for the superposition of the plurality of molecular species in a vacuum environment and in the environment of interest using a quantum optimization process; calculating a difference in lowest energy states between the vacuum environment and the environment of interest for each molecular species to provide a cost of the superposition of the plurality of molecular species; performing a quantum optimization process to determine a minimum cost for the superposition of the plurality of molecular species and to determine updated coefficients weighting the plurality of molecular species; and identifying the molecule for the environment of interest based on a comparison of the updated coefficients.Type: GrantFiled: April 29, 2019Date of Patent: August 15, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ivano Tavernelli, Panagiotis Barkoutsos, Stefan Woerner, Alessandro Curioni, Fotios Gkritsis
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Publication number: 20230186133Abstract: Systems, computer-implemented methods, and computer program products to facilitate multireference parallelization of variational quantum computing to achieve high accuracy with short circuit depths. According to an embodiment, a system can comprise a processor that executes computer executable components stored in memory. The computer executable components comprise a trial component that prepares a multireference trial state based on a qubit operator, by applying a unitary circuit operator to a sum of selected initial configurations.Type: ApplicationFiled: December 14, 2021Publication date: June 15, 2023Inventors: Pauline Ollitrault, Guglielmo Mazzola, Ivano Tavernelli
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Patent number: 11676056Abstract: A method for calculating excited state properties of a molecular system using a hybrid classical-quantum computing system includes determining, using a quantum processor and memory, a ground state wavefunction of a combination of quantum logic gates. In an embodiment, the method includes forming a set of excitation operators. In an embodiment, the method includes forming a set of commutators from the set of excitation operators and a Hamiltonian operator. In an embodiment, the method includes mapping the set of commutators onto a set of qubit states, the set of qubit states corresponding to a set of qubits of the quantum processor. In an embodiment, the method includes evaluating, using the quantum processor and memory, the set of commutators. In an embodiment, the method includes causing a quantum readout circuit to measure an excited state energy from the set of computed commutators.Type: GrantFiled: March 29, 2019Date of Patent: June 13, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Pauline Ollitrault, Panagiotis Barkoutsos, Stefan Woerner, Marco Pistoia, Antonio Mezzacapo, Ivano Tavernelli
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Patent number: 11551128Abstract: Techniques regarding determining a three-dimensional structure of a heteropolymer 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 polymer folding component that can generate a course-grained model to determine a three-dimensional structure of a heteropolymer based on a first qubit registry that encodes a conformation of the heteropolymer on a lattice and a second qubit registry that encodes an interaction distance between monomers comprised within the heteropolymer.Type: GrantFiled: July 30, 2019Date of Patent: January 10, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Anton Robert, Panagiotis Barkoutsos, Stefan Woerner, Ivano Tavernelli
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Patent number: 11544611Abstract: Techniques regarding quantum computation of molecular excited states 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 an initialization component that can categorize a plurality of excited operators from a mapped qubit Hamiltonian into sectors based on a commutation property of the plurality of excited operators with a symmetry from the mapped qubit Hamiltonian. The computer executable components can also comprise a matrix component that can generate an equation of motion matrix from an excited operator from the plurality of excited operators based on the sectors categorized by the initialization component.Type: GrantFiled: December 12, 2018Date of Patent: January 3, 2023Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Richard Chen, Antonio Mezzacapo, Marco Pistoia, Pauline Ollitrault, Ivano Tavernelli, Jay M. Gambetta
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Patent number: 11494532Abstract: Techniques and a system to facilitate simulation-based optimization on a quantum computer are provided. In one example, a system includes a quantum processor. The quantum processor performs a quantum amplitude estimation process based on a probabilistic distribution associated with a decision-making problem. Furthermore, the quantum processor includes a simulator that simulates the decision-making problem based on the quantum amplitude estimation process.Type: GrantFiled: June 17, 2019Date of Patent: November 8, 2022Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Stefan Woerner, Christa Zoufal, Daniel Josef Egger, Panagiotis Barkoutsos, Ivano Tavernelli
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Publication number: 20220300845Abstract: Embodiments are provided for error mitigation in quantum programs. In some embodiments, a system can include a processor that executes computer-executable components stored in memory. The computer-executable components include a compilation component that causes encoding of one or more qubits according to a circular repetition code at a time after operations on the one or more qubits and before readout.Type: ApplicationFiled: March 19, 2021Publication date: September 22, 2022Inventors: Panagiotis Barkoutsos, Jakob Max Guenther, Francesco Tacchino, James Robin Wootton, Ivano Tavernelli
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Patent number: 11392849Abstract: Systems and methods that facilitate motion formalism utilizing quantum computing, to compute matrix operators in terms of commutators between qubit operators and measurements on the quantum hardware, wherein the commutators are computed utilizing symbolic calculus. Embodiments reduce computational cost of generalized eigenvalue synthesis relying on symbolic calculus and parallelization. Embodiments disclosed herein can also develop estimators of excited-states properties, considering constants of motion (e.g. spin) and non-constants of motions (e.g. dipoles, density matrices).Type: GrantFiled: September 18, 2020Date of Patent: July 19, 2022Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, JSR CORPORATIONInventors: Mario Motta, Pauline Ollitrault, Stephen Wood, Panagiotis Barkoutsos, Joseph Latone, Ivano Tavernelli, Gavin Jones, Edward Pyzer-Knapp, Yuya Onishi
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Publication number: 20220179921Abstract: Techniques of facilitating improved computational efficiency in Variational Quantum Eigensolver calculations by quantum computing devices. In one example, a system can comprise a processor that executes computer executable components stored in memory. The computer executable components can comprise: a distribution component; and a feedback component. The distribution component can set a Pauli-dependent sample budget for a Pauli term of an operator to unevenly distribute a total sample budget for evaluating an expected value of the operator among a plurality of Pauli terms composing the operator. The plurality of Pauli terms can comprise the Pauli term. The feedback component can evaluate compatibility between a prescreening variance for the Pauli term and a production variance of the Pauli term generated using the Pauli-dependent sample budget.Type: ApplicationFiled: December 4, 2020Publication date: June 9, 2022Inventors: Guglielmo Mazzola, Pauline Ollitrault, Ivano Tavernelli
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Publication number: 20220092458Abstract: Systems and methods that facilitate motion formalism utilizing quantum computing, to compute matrix operators in terms of commutators between qubit operators and measurements on the quantum hardware, wherein the commutators are computed utilizing symbolic calculus. Embodiments reduce computational cost of generalized eigenvalue synthesis relying on symbolic calculus and parallelization. Embodiments disclosed herein can also develop estimators of excited-states properties, considering constants of motion (e.g. spin) and non-constants of motions (e.g. dipoles, density matrices).Type: ApplicationFiled: September 18, 2020Publication date: March 24, 2022Inventors: Mario Motta, Pauline Ollitrault, Stephen Wood, Panagiotis Barkoutsos, Joseph Latone, Ivano Tavernelli, Gavin Jones, Edward Pyzer-Knapp, Yuya Onishi
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Publication number: 20220012382Abstract: Techniques facilitating density-functional theory determinations using a quantum computing system are provided. A system can comprise a first computing processor and a second computing processor. The first computing processor can generate a density-functional theory determination. The second computing processor can input a quantum density into the density-functional theory determination. The first computing processor can be operatively coupled to the second computing processor. Further, the first computing processor can be a classical computer and the second computing processor can be a quantum computer.Type: ApplicationFiled: July 13, 2020Publication date: January 13, 2022Inventors: Ivano Tavernelli, Panagiotis Barkoutsos, Pauline Ollitrault, Max Rossmannek
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Publication number: 20210035003Abstract: Techniques regarding determining a three-dimensional structure of a heteropolymer 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 polymer folding component that can generate a course-grained model to determine a three-dimensional structure of a heteropolymer based on a first qubit registry that encodes a conformation of the heteropolymer on a lattice and a second qubit registry that encodes an interaction distance between monomers comprised within the heteropolymer.Type: ApplicationFiled: July 30, 2019Publication date: February 4, 2021Inventors: Anton Robert, Panagiotis Barkoutsos, Stefan Woerner, Ivano Tavernelli
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Patent number: 10902085Abstract: Solving mixed integer problems using a hybrid classical-quantum computing system includes generating a plurality of decision variables for a function associated with a combinatorial optimization problem by a first processor using an optimizer, and deriving at least one quantum state parameter for a quantum processor based upon one or more of the decision variables. The quantum processor is initiated in a quantum state based upon the at least one quantum state parameter. A plurality of intermediate quantum states of the quantum processor are measured using a plurality of quantum measurements of the quantum state to obtain a plurality of samples. The plurality of samples are evaluated by the first processor to obtain a measure of a quality of the quantum state and of one or more solutions to the combinatorial optimization problem.Type: GrantFiled: January 15, 2019Date of Patent: January 26, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Stefan Woerner, Giacomo Nannicini, Panagiotis Barkoutsos, Ivano Tavernelli
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Publication number: 20200394276Abstract: Techniques and a system to facilitate simulation-based optimization on a quantum computer are provided. In one example, a system includes a quantum processor. The quantum processor performs a quantum amplitude estimation process based on a probabilistic distribution associated with a decision-making problem. Furthermore, the quantum processor includes a simulator that simulates the decision-making problem based on the quantum amplitude estimation process.Type: ApplicationFiled: June 17, 2019Publication date: December 17, 2020Inventors: Stefan Woerner, Christa Zoufal, Daniel Josef Egger, Panagiotis Barkoutsos, Ivano Tavernelli