![]() Present projects include development of (sub)nm focused ion beam (FIB) technology using laser-cooled ion sources, with Thermo Fisher Scientific a program on ultracold source development and ultrafast beam manipulation for femtosecond electron microscopy & crystallography, also supported by Thermo Fisher ultra-bright, high-current electron source development for a new generation of high-brilliance X-ray sources, supported by EU Interreg, ASML and CERN development of a quantum simulator based on Rydberg atom lattices development of quantum theory of few-body systems to describe fundamental phenomena in ultracold atomic gases. ![]() To reach the special experimental conditions needed for our research, atomic gases and charged particle beams are manipulated and controlled by coherent light-matter interaction, using both ultra-narrowband continuous-wave lasers and mode-locked femtosecond lasers, enabling a new class of experiments that are both ultracold and ultrafast. Thanks to our long history of close collaboration between theorists and experimentalists, we can develop unifying concepts and translate them into new sources of charged particles and X-rays for scientific, industrial and medical applications.Īn essential area of interest for us is light-matter interaction. Abstract: Coherence, or superposition of atomic states drastically modifies optical properties of atomic media, gives rise to a plethora of interference effects. Our approach includes both experiment and theory, for a balanced mixture of 50 % fundamental and 50 % applied research. The Coherence and Quantum Technology group has a special position in the physics community thanks to its unique combination of atomic physics, plasma and accelerator physics and technology.
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