The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2026
Filed:
Jun. 20, 2024
International Business Machines Corporation, Armonk, NY (US);
Elisa Doreen Bäumer, Zurich, CH;
Almudena Carrera Vazquez, Thalwil, CH;
Daniel Josef Egger, Zurich, CH;
Stefan Woerner, Zurich, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, system, and computer program product for implementing a quantum fan-out operation. A fan-out gate is constructed using ladders of CNOT gates in a constant depth using a dynamic quantum circuit. Constant depth refers to the depth or number of time steps being independent of the number of qubits. A dynamic quantum circuit is a quantum circuit with mid-circuit measurements and feed-forward classical operations which allows such circuits to be adaptive on-the-fly. The quantum fan-out operation is implemented by the fan-out gate using ancilla qubits and feed-forward operations. In this manner, the quantum fan-out operation can be implemented on superconducting devices at a reduced depth (constant depth) with fewer CNOT gates as well as using fewer ancilla qubits.