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Amazon patents method to cool quantum bits to reduce errors

Amazon describes a technique for cooling specific types of quantum bits, known as energy gap protected qubits, by selectively removing heat from them. The method uses frequency dissipation to push excited states back down to lower energy levels, which helps prevent data errors and stops the qubits from leaking into unwanted states.

Why it mattersThis filing details a specific engineering approach to improve the stability of quantum computers, which are still in the early stages of development.

In the filing’s own words

Selective frequency dissipation is implemented that enables cooling of energy gap protected qubits such that excited energy states resulting from heating or other undesired processes are returned to a lower excited energy state or a ground state manifold, thus reducing the probability of errors. Also, the selective frequency dissipation inhibits leakage from the energy gap protected qubits when in the ground state. Additionally or alternatively, Hamiltonian engineering by inducing parity rotations is implemented to decouple the wells of the energy gap protected qubit to further reduce errors when leakage does happen.

What exactly they claim (claim 1)

1.- 20. (canceled)

Facts

Company
Amazon (Amazon Technologies, Inc.)
Official title
DYNAMICAL DECOUPLING OF WELLS FOR AN ENERGY GAP PROTECTED QUBIT
Publication number
US20260287972A1
Application number
19685924
Filed
May 22, 2026
Published
Sep 24, 2026
Inventors
7
Claims
21

Classified under

G02F 3/00 Physics & computingG06N 10/00 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.