Quantum Optics and Quantum Information

Quantum Optics and Quantum Information Research
Department leader

One of the scientific breakthroughs of the 21st century is quantum technology, which brings about significant changes in communication, computing, and information technologies. Its impact extends to metrology and medical diagnostics as well. This new technology fundamentally surpasses the limitations of traditional methods in terms of security, efficiency, accuracy, and sensitivity. For our research center, it is vitally important to participate in quantum technology research, development, and innovation projects to contribute to national and European efforts.

At the Department of Quantum Optics and Quantum Information of the HUN-REN Wigner RCP, theoretical and experimental research aims to exploit high-precision coherent quantum mechanical manipulation of individual atoms and photons, as well as ultracold quantum gases, for implementing quantum information operations. They are developing a universal atom-photon interface, gaining cutting-edge knowledge and experimental know-how in the field of atom and laser physics. There is also intensive research in the field of quantum information and quantum communication at the department. The fact that they are currently working with remotely available quantum computers and are building up a quantum communication network with commercial quantum key distribution (QKD) devices shows that the field of quantum information has outgrown the traditional boundaries of fundamental research. There is an ever increasing interest in their protocols developed for benchmarking quantum computers. 

Cavity quantum electrodynamics and ultracold atoms
The group deals with elementary quantum systems, larger networks constructed of such systems, and their applications in quantum information processing as well as the description of their specific physical realisation...