The goal is to study the interplay between spin properties of cavity polaritons and their transport properties. We are planning to perform theoretical study of the Optical spin Hall effect in the nonlinear regime, analyze the role of the polariton Berry phase in 1D and 2D polariton transport , formulate the theory of the polariton Josephson effect and investigate the possibility of its use in the domain of the information encoding.
Polariton integrated circuits
The goal is to demonstrate a possibility of the realization of the basic elements of the future polariton integrated circuit. This is a complex task that cannot be resolved without the use of new physical effects, technological approaches and device concepts. We will exploit the newly discovered fascinating effects of polariton-mediated optical bistability, plasmon-polariton coupling and propagation of polariton domain walls in microcavities for the realization of a new concept of the polariton integrated circuit, based on the idea of a polariton neuron.
Hybrid polariton- electron systems
The goal will be to study quantum collective phenomena in condensed matter analog of a Bose- Fermi colad atom mixture arising from strong exciton- electron interactions, including polariton mediated superconductivity, formation of a roton minimum in the dispersion of the elementary excitations and transition to a supersolid phase. The main idea is that in the pairing of the electrons necessary for the transition into superconducting state can be achieved in a hybrid polariton- electron system due to the exchange of the virtual excitations of the polariton BEC which thus play the role of the phonons in standard BCS mechanism of superconductivity With respect to other mechanisms, there is an important novelty here: the strength of polariton electron interaction and thus all important parameters of the system such as its critical temperature can be tuned in very large limits by variation of the occupation number of the condensate.
