Scientists from the Joint Laboratory of Optics, a collaboration between Palacký University and the Institute of Physics of the Czech Academy of Sciences, have significantly refined and improved the efficiency of quantum entanglement tests, which play a crucial role in the development of quantum computers, by incorporating artificial intelligence. Their research results were recently published in the prestigious journal Physical Review Research.

Nobel Prize laureate for experiments with quantum-entangled photons, Professor Alain Aspect, visited the Institute of Physics of the Czech Academy of Sciences. At the FZU headquarters in Prague, he delivered a lecture titled "From Einstein and Bell to Quantum Technologies: Entanglement in Action". Three representatives from the Joint Laboratory of Optics of Palacký University and the Institute of Physics of the Czech Academy of Sciences attended both the lecture and the subsequent discussion.

Professor Rene A. Ong, a professor of astronomy and astrophysics at the Department of Physics and Astronomy at the University of California, Los Angeles, specializing in research in the field of astro-particle physics and high-energy astrophysics, visited the Joint Laboratory of Optics. Professor Ong currently serves as a co-spokesman for the CTA (Cherenkov Telescope Array) consortium, in which the Joint Laboratory of Optics is also involved.

The group of quantum and nonlinear optics at the Joint Laboratory of Optics deals long-term with twin beams that became an important tool for quantum optics as they exhibit quantum correlations and entanglement. A. Aspect, J. Clauser, and A. Zeilinger were awarded 2022 Nobel prize for physics for experiments with entangled photons. Quantum correlations cause that the results of measurements of properties of paired photons are not independent but bound together at a distance with invisible ties unparalleled in classical physics. This is why we call the paired photons nonclassical light.