Quantum photonics, the science and technology of quantum light, is a broad research field at the heart of modern optical physics. The project explores complementarity structures connected to polarization of light in various quantum photonic topologies. Polarization, the vectorial aspect of light, is a key notion in photonics and offers a central resource for optical applications. Complementarity, stating that quantum systems share mutually exclusive properties, is likewise a primary concept in quantum physics of relevance for high-precision metrology. The project takes place at the University of Eastern Finland and covers advanced fundamental research together with the University of Gdansk (Poland), University of Zaragoza (Spain), and ETH Zurich (Switzerland). The results are expected to reveal new foundational facets of quantized light and to form the basis for novel quantum optical applications harnessing interferometric techniques, polarimetric sensing, and complex-structured light.

2023

2027