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:
Apr. 29, 2025
Filed:
May. 03, 2024
University of Maryland, College Park, College Park, MD (US);
Government of the United States of America, As Represented BY the Secretary of Commerce, Gaithersburg, MD (US);
Seyed Alireza Seif Tabrizi, Adelphi, MD (US);
Mohammad Hafezi, Washington, DC (US);
Yi-Kai Liu, Gaithersburg, MD (US);
University of Maryland, College Park, College Park, MD (US);
Government of the United States of America, as Represented by the Secretary of Commerce, Gaithersburg, MD (US);
Abstract
A method for detecting a two-qubit correlated dephasing error includes accessing a signal of a quantum system, where the quantum system includes a plurality of qubits. Every qubit has a nonzero rate of dephasing and some qubits have a nonzero rate of correlated dephasing. The signal further includes information about a matrix that includes diagonal elements and off-diagonal elements. The off-diagonal elements of the matrix are 2s-sparse. The method further includes performing randomized measurements of the off-diagonal elements of the matrix and recovering the matrix based on a direct measurement of the diagonal elements of the matrix.