Patent · US Active

Two-photon quantum photonic logic gates

US12422732B2 · kind B2 · utility

0Cited by

4References

17Claims

0Family size

Assignee

Washington University · US

Inventors

Jung-Tsung Shen · Chesterfield, US
Yao Zhou · Suzhou, CN
Zihao Chen · Los Angeles, US

Key dates

Filing date	Dec 23, 2021
Grant date	Sep 23, 2025
Priority date	—
Expiry date	Feb 27, 2044

Classification

Technology area (CPC G)Physics
CPC primaryG06N10/40
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Photonic controlled-phase gates that include a dipole emitter chirally coupled to a plurality of photonic qubit pairs in a waveguide are disclosed herein. Each photonic qubit pair includes a two-qubit state |xy, wherein the two-qubit state |xy comprises a combination of single-qubit states |0 and |1, and may be |00, |01, |10, and |11. The dipole emitter is configured to interact with the single-qubit state |0 to impose a π phase shift, and the dipole emitter interacts with states |00, |01, and |10 to impose the π phase shift.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.