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The most basic currently known theory describing the structure of matter and the interactions of its components (apart from gravity) is the standard model, which is the 'latest version' of quantum theory. It is the basis for subsequent branches of physics, starting with elementary particles, through atoms and molecules, to more complex structures, the description of which is the domain of chemistry or even biology. Quantum theory is characterized by an extraordinary power of prediction - so far, no experiment has proven to be inconsistent with it, and numerous measurements have confirmed the correctness of its predictions with stunning accuracy (e.g. measurement of the structure of the hydrogen atom or measurement of the anomalous magnetic dipole moment of the electron with an accuracy of a dozen or so significant digits). There are a number of physical problems and questions concerning fundamental laws that suggest that the standard model is not the final edition of quantum theory, e.g.: the problem of unification of the standard model with general relativity, the question of the existence and structure of dark matter, the question of whether the fundamental constants are constant (in space and time) - and many others. During the lecture, Prof. Piotr Wcisło will talk about experiments conducted in his team, which use ultra-precise laser systems to test quantum theory. Dr. Hab. Piotr Wcisło is a professor at Nicolaus Copernicus University in Toruń. He is a physicist, his interests include testing quantum theory - using methods that he developed with his team - and searching for an explanation of dark matter. In 2022, he received the Scientific Award of the National Science Centre for achievements in both of the above-mentioned areas. He has led numerous research projects, and at the end of the year, as one of four scientists from Poland, he received the prestigious ERC Starting Grants, awarded by the European Research Council. The lecture was organized in cooperation with the National Science Centre. The miniature uses a photo of École polytechnique - J.Barande, CC BY-SA 2.0. The miniature is available under the same license. We invite you to watch a film about the speaker: • Winner of the NCN Award 2022 – Piotr Wcisło and read an article about this year's NCN awards https://www.ncn.gov.pl/aktualnosci/20...