USPTO Grants Quantum Simulation Patent to UChicago Argonne

ChangeBridge: Patent Grants - AI & Computing (G06N)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted a patent (US12585841B2) to UChicago Argonne, LLC for a quantum simulation method. The patent aims to reduce computation time for simulating quantum computations on classical computers by optimizing tensor network contraction.

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What changed

The United States Patent and Trademark Office (USPTO) has issued patent US12585841B2 to UChicago Argonne, LLC. This patent covers a method for accelerating quantum computation simulations on classical computers. The core innovation involves an algorithm to determine the most efficient input contraction for a tensor network representing a quantum circuit, thereby reducing computation time.

This is a grant of intellectual property and does not impose new regulatory obligations on businesses. However, it signifies a development in quantum computing technology that may influence future research and development in the AI and computing sectors. Companies operating in these areas should be aware of this patented technology.

Source document (simplified)

← USPTO Patent Grants

Quantum simulation

Grant US12585841B2 Kind: B2 Mar 24, 2026

Assignee

UCHICAGO ARGONNE, LLC

Inventors

Yuri Alexeev, Alexey Galda, Danylo Lykov

Abstract

A method for reducing computation time while simulating quantum computation on a classical computer by performing an algorithm used to determine the most efficient input contraction, the method including receiving, by a processor, a tensor network representing a quantum circuit, computing, by the processor, an ordering for the tensor network by an ordering algorithm, contracting, by the processor, the tensor network by eliminating indices according to the ordering resulting in a contracted tensor network, and returning, by the processor, the contracted tensor network.