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Caramel

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CARAMEL

CARAMEL (acronym for CAPTURING POLARITONIC QUANTUM CORRELATIONS) is my Sonatina research project (funded by the Polish National Science Center (NCN), project number 2021/40/C/ST2/00155, financial number is 501-D111-66-000 6671 (GR-6671)) at the University of Warsaw, on the period 1 October (2021)—30 September (2024).

Goals

CARAMEL is a theoretical project that seeks to consolidate polaritons as an ideal platform to build the next generation of quantum computers. I participated in a recent experiment that used quantum light (e.g., a pair of entangled photons) to drive polaritons and determine that they are able to sustain quantum correlations. CARAMEL will be devoted to the theoretical and systematic evaluation of the quantum regimes that polaritons can reach, the behavior that they can have when their excitation is done with structured quantum light, and the mechanisms that allow the modification of their quantum states. I will consider the most fundamental quantum system as the source of the excitation: resonance fluorescence in the so-called Mollow regime. Selecting the adequate frequency of emission from such a system, one can have light with every type of second-order correlation function. Using this source of light to excite polaritons will allow us to identify configurations in which polaritons display desired quantum properties, which could be later exploited for technological applications. Another key factor to establish polaritons as a platform for quantum technologies is the easiness with which they can be manipulated and transported. In this respect, the description of the spatial propagation of polaritons is fundamental. CARAMEL will also tackle this scenario and will study the hydrodynamical properties of few-polariton wavepackets, which arise when they propagate in space.

Project management

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