I will focus my talk on quantum key distribution (QKD) - the most reliable way how to securely distribute cryptographic keys. The QKD is one of several applications of an emergent field of quantum (information) technologies. In order to appreciate better the transformative potential of quantum technologies I will explain basic principles of quantum physics. In particular, I will describe in detail two phenomena: quantum superpositions and a quantum entanglement. After this a detaled description of a quantum-key-distribution link between Vienna and Bratislava that has been opened in 2020 will follow. I will conclude my talk by a short presentation of the national plan for building a quantum communication infrastructure.
Prof. Dr. Vladimír Bužek, D.Sc.
Prof. Dr. Vladimír Bužek, DrSc. has graduated at the Moscow State University (both MSc and PhD in 1982 and 1985, respectively). His research interests have been focused on theoretical quantum optics, quantum information sciences and technologies. He is an author and co-author of more than research 230 papers and 15 chapters in monographs and books. He has held academic and visiting positions at many institutions including Imperial College, London (UK), National University of Ireland, Maynooth (Ireland), University of Ulm (Germany), SOKEN (Japan), University of Queensland (Australia), Sogang University (South Korea), INAOE Mexico, Pontificia Universidad Católica de Chile etc. Over years he has been serving on various national and international advisory, editorial, as well as scientific boards. Starting from 2019 he has been a member of the Strategic Advisory Board of European Quantum Flagship and an expert for the EuroQCI board. Presently he leads an effort to build a quantum communication infrastructure in Slovakia.