The Czech Republic is developing a quantum communication network. It can now rely on a complete backbone quantum network connecting Prague, Brno, and Ostrava, enabling the transmission of cryptographic keys based on the principles of quantum cryptography. This will allow secure communications for government institutions, banks, and private entities despite the growing risks associated with the increasing capabilities of quantum computers.
Measuring extremely small signals, such as tiny forces, magnetic fields, or temperature changes , is at the heart of modern technology, from medical diagnostics to navigation and fundamental physics experiments. Scientists are increasingly turning to quantum systems to push measurement precision beyond classical limits. However, real devices are never perfectly isolated, they are open: they interact with their environment, constantly exchanging energy. Understanding how to exploit this openness rather than fight it has become one of the central challenges in quantum sensing.
Scientists from the Joint Laboratory of Optics have become the first in the world to experimentally confirm a link between the uncertainty of a quantum state and quantum entanglement — a connection theoretically predicted by physicists from Japan and Taiwan. The results of their scientific work, published in a prestigious journal by Springer Nature, offer a completely new perspective on previously unknown relationships governing the functioning of nature at the quantum level.
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.
The Czech Republic is developing a quantum communication network. It can now rely on a complete backbone quantum network connecting Prague, Brno, and Ostrava, enabling the transmission of cryptographic keys based on the principles of quantum cryptography. This will allow secure communications for government institutions, banks, and private entities despite the growing risks associated with the increasing capabilities of quantum computers.
