"Observing Quantum Energy Tuning in Single Electrons by Surrounding Atoms"

Physicists at the University of Regensburg have observed the shift of a quantized electronic energy level with atomic oscillations faster than a trillionth of a second, using an ultrafast microscope to directly control and observe the process. This breakthrough discovery could be crucial for the development of super-fast quantum technologies, as it enables the local control of discrete energy levels in the most direct way, potentially leading to new functionalities in materials and the unraveling of key processes behind phase transitions like high-temperature superconductivity.