Purpose. For the construction of optical quantum computers, the creation of optical quantum cryptography systems, and will also improve the coding of information in security and cyber defense systems.
Specifications. May vary significantly depending on the material used. For fused quartz: light wavelength – from 0.2 to 4.5 microns, sound wave frequency – from 10 MHz to 10 GHz, polarization change angle – up to 90 degrees, diffraction angle – from 0.03 to 30 degrees.
Application area. Quantum computers, information security and cyber defense systems. Manufacturers of computer equipment, communication systems and information security.
Advantages. Ultra-wide range of light waves (from IR to UV, 0.2 µm – 4.5 µm), wide range of sound waves (from 10 MHz to 10 GHz), simplicity and low cost of design, lack of precision elements, possibility of implementation using integrated optical devices .
Technical and economic effect. The main result of the developed technology is the creation of an improved element base for the construction of optical quantum computers and optical quantum cryptography systems. Its implementation will allow Ukraine to take a leading position in the market for optical quantum computers, as well as improve information coding in information security and cyber defense systems, which is very important in conditions of martial law in Ukraine.
Description. The technology for creating an optical quantum logic element for controlling qubits with polarization coding is based on the interaction of light radiation with a transverse acoustic wave propagating in an optically isotropic medium. As a result of this interaction, a diffracted optical beam is formed, the polarization of which is orthogonal to the polarization of the input radiation. Thus, a controlled quantum logic element “NI” (CNOT gate) is obtained.