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Microsoft patents method to map quantum logic to physical qubits

This patent describes a software method for quantum computers that translates high-level logical instructions into specific physical actions. It uses mathematical tables to calculate how a logical operation affects the underlying physical qubits, ensuring the computer performs the correct task.

Why it mattersThis is a foundational software technique that helps quantum computers manage errors and execute complex calculations reliably.

In the filing’s own words

A computing system is provided, including one or more processing devices configured to receive an extended stabilizer form of a quantum error correction code. The one or more processing devices are further configured to receive a logical Clifford operation specification of a logical Clifford operation. Based at least in part on the extended stabilizer form, the one or more processing devices are further configured to compute a stabilizer tableau of the quantum error correction code. Based at least in part on the stabilizer tableau and the logical Clifford operation specification, the one or more processing devices are further configured to compute a physical representation matrix of the logical Clifford operation. The one or more processing devices are further configured to output the physical representation matrix.

What exactly they claim (claim 1)

1. A computing system comprising: one or more processing devices configured to: receive an extended stabilizer form of a quantum error correction code; receive a logical Clifford operation specification of a logical Clifford operation; based at least in part on the extended stabilizer form, compute a stabilizer tableau of the quantum error correction code; based at least in part on the stabilizer tableau and the logical Clifford operation specification, compute a physical representation matrix of the logical Clifford operation based at least in part on an invertible bit matrix and an additional bit matrix; and output the physical representation matrix.

Facts

Company
Microsoft (Microsoft Technology Licensing, LLC)
Official title
Computing physical representation matrix of logical Clifford operation
Patent number
US12762456B2
Application number
18826100
Filed
Sep 5, 2024
Granted
Oct 13, 2026
Inventors
2
Claims
18

Classified under

G06N 10/70 Physics & computingG06N 10/20 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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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.