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:
May. 04, 2021
Filed:
Sep. 12, 2019
International Business Machines Corporation, Armonk, NY (US);
Gian R. von Salis, Aeugst am Albis, CH;
Nikolaj Moll, Thalwil, CH;
Stefan Filipp, Zurich, CH;
Daniel Josef Egger, Thalwil, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of operating a quantum information processing apparatus is provided. This apparatus includes a structure of coupled qubits, where N≥3, wherein the structure further includes coupling elements. The coupling elements couple pairs of N qubits, wherein, at least, a portion of the qubits are connected by a respective one of the coupling elements, whereby the two qubits of each said pair are connected by a respective coupling element. A method comprises identifying a path of M qubits in the structure of coupled qubits, wherein the path extends from a first qubit to a last qubit of the N qubits. The identified path consists of M qubits and M−1 coupling elements alternating along said path, where 2<M≤N. A single-cycle operation is performed, wherein all pairs of two successive qubits in the identified path are concomitantly subjected to exchange-type interactions of distinct strengths.