/Patent Tracker
GooglePatent applicationChips & hardwareInterest 3/10

Google patents method to test quantum chips using math

Google describes a way to check how well a quantum computer works by running a specific math routine. The method finds key energy states of the machine to help engineers understand its performance.

Why it mattersIt offers a new tool for engineers to measure and improve the accuracy of early-stage quantum hardware.

In the filing’s own words

One example aspect of the present disclosure is directed to a method for quantum computing. The method includes performing a variational algorithm to determine a set of eigenstates of a Hamiltonian. The Hamiltonian corresponds to a quantum processor. The method includes characterizing the quantum processor based on the set of eigenstates

What exactly they claim (claim 1)

1. A method for quantum computing, the method comprising: performing a variational algorithm to determine a set of eigenstates of a Hamiltonian, wherein the Hamiltonian corresponds to a quantum processor; and characterizing the quantum processor based on the set of eigenstates.

Facts

Company
Google (Google LLC)
Official title
Characterization Of Quantum Processors via Density-Matrix-Renormalization-Group Methods
Publication number
US20260278445A1
Application number
19235391
Filed
Jun 11, 2025
Published
Sep 17, 2026
Inventors
5
Claims
23

Classified under

G06N 10/60 Physics & computingG06N 10/70 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Google in Chips & hardware

Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.