LINEAR OPTICAL CONTROLLED Z-GATE COMPRISING QUANTUM MEMORIES

Organization Name

Inventor(s)

Nikolay Alekseyevich Kaliteevskiy of Espoo (FI)

Fedor Dmitrievich Kiselev of Saint-Petersburg (RU)

Petr Mikhaylovich Sterlingov of Espoo (FI)

LINEAR OPTICAL CONTROLLED Z-GATE COMPRISING QUANTUM MEMORIES - A simplified explanation of the abstract

This abstract first appeared for US patent application 18689121 titled 'LINEAR OPTICAL CONTROLLED Z-GATE COMPRISING QUANTUM MEMORIES

The abstract describes a linear optical CZ-gate system consisting of various optical channels, quantum memories, a sign gate, and a nonlinear gate.

A1 and A2 optical channels with quantum memories, B1 optical channel with a quantum memory, and a common optical channel where A2 and B1 converge.
Nonlinear sign gate and B2 optical channel are also part of the system.

Potential Applications: - Quantum computing - Quantum communication - Quantum cryptography

Problems Solved: - Enhancing quantum information processing - Implementing quantum logic gates

Benefits: - Improved quantum computing capabilities - Enhanced quantum communication security

Commercial Applications: Title: "Advanced Quantum Computing System for Secure Communication" This technology can be used in industries such as cybersecurity, telecommunications, and data encryption.

Questions about the technology: 1. How does this linear optical CZ-gate system improve quantum computing processes? 2. What are the specific advantages of using quantum memories in this setup?

Original Abstract Submitted

A linear optical CZ-gate includes an A1 optical channel having an A1 input end and an A1 output end, an A2 optical channel having an A2 input end and an A2 output end, wherein a first quantum memory is optically coupled to the A2 optical channel, a B1 optical channel having a B1 input end and a B1 output end, wherein a second quantum memory is optically coupled to the B1 optical channel. The A2 optical channel and the B1 optical channel converge at a common optical channel downstream the first quantum memory and the second quantum memory, a nonlinear sign gate optically coupled to the common optical channel, and a B2 optical channel comprising a B2 input end and a B2 output end.