US 12,001,923 B2Granted

Quantum streaming kernel

AssigneeRigetti & Co, LLC

InventorsNikolas Anton Tezak, Marcus Palmer da Silva, Robert Stanley Smith, Christopher Mogan Wilson

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Abstract

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.

Claims24

Dependent claims

A method of operating a hybrid computer system comprising a classical processor and a quantum processor comprising qubit devices, the method comprising:

parameterizing, by operation of the classical processor, a first set of quantum logic gates of a quantum logic circuit based on input data;
executing, by operation of the classical processor and the quantum processor, the quantum logic circuit, wherein executing the quantum logic circuit comprises:
applying the parameterized first set of quantum logic gates to a first subset of qubits defined by a first subset of the qubit devices;
applying a second set of quantum logic gates to the first subset of qubits and a second subset of qubits defined by a second distinct subset of the qubit devices;
and
measuring a third subset of qubits defined by a third distinct subset of the qubit devices to obtain an output of the quantum logic circuit;
and
generating, by operation of the classical processor, output data based on the output of the quantum logic circuit.

5 more elements

A computer system comprising:

a classical processor;
a quantum processor comprising qubit devices;
and
memory storing instructions that, when executed by the classical processor and the quantum processor, cause the classical processor and the quantum processor to perform operations comprising:
parameterizing, by operation of the classical processor, a first set of quantum logic gates of a quantum logic circuit based on input data;
executing, by operation of the classical processor and the quantum processor, the quantum logic circuit, wherein executing the quantum logic circuit comprises:
applying the parameterized first set of quantum logic gates to a first subset of qubits defined by a first subset of the qubit devices;
applying a second set of quantum logic gates to the first subset of qubits and a second subset of qubits defined by a second distinct subset of the qubit devices;
and
measuring a third subset of qubits defined by a third distinct subset of the qubit devices to obtain an output of the quantum logic circuit;
and
generating, by operation of the classical processor, output data based on the output of the quantum logic circuit.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/317,674Filed 15 May 2023 · continuation
Priority: 9 Aug 2018
Published: US 2023/0368061 A116 Nov 2023
Granted: 4 Jun 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G06N 10/40
Quantum computing, i.e. information processing based on quantum-mechanical phenomena: physical realisations or architectures of quantum processors…
G06N 20/10
Machine learning: using kernel methods, e.g. support vector machines [SVM]
G06N 10/20
Quantum computing, i.e. information processing based on quantum-mechanical phenomena: models of quantum computing, e.g. quantum circuits or…
G06N 10/80
Quantum computing, i.e. information processing based on quantum-mechanical phenomena: quantum programming, e.g. interfaces, languages or…

Family

Application62/716,678Us provisional application · filed 9 Aug 2018
PCT/US2019/045866Parent of this continuation · filed 9 Aug 2019
Application17/168,634Parent of this continuation · filed 5 Feb 2021
US 2023/0368061 A1Pre-grant publication · published 16 Nov 2023
US 11,694,108 B2Parent of this continuation
US 2022/0164693 A1Published application
US 12,001,923 B2This patent

From the US filing history. Foreign family members aren’t listed.

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