MODEL OF OPTICAL SOLITONS IN LIQUID CRYSTALS; МОДЕЛЬ ОПТИЧЕСКИХ СОЛИТОНОВ В ЖИДКИХ КРИСТАЛЛАХ

The conditions of soliton formation in a liquid crystal (LC) layer for generation of a pair of photons in an entangled quantum state (biphoton) during quantum calculations are considered. The geometrical dimensions of the soliton generated by a pulse of optical radiation, its dynamics and stability are estimated by using the knowledge of physical parameters as well as its non-linear optical properties of the liquid crystal. In nematic LCs, the realisation of single solitons with a spatial size of several tens of micrometers or even less is possible. The formation time of these solitons can be from fractions of a millisecond to tens of milliseconds, and their existence time ranges from fractions of a millisecond to hundreds of milliseconds. A possibility of overlapping of neighboring in space or time optical solitons (or regions inside the liquid crystal layer, in which the deformation is induced by the light wave field from successive light pulses) is considered. On this basis it is possible to "encode" entangled states with high distinction level of signal and to carry out quantum calculations. © 2025 Elsevier B.V., All rights reserved.