Thema der Dissertation:
Control of Rydberg atoms for quantum technologies
Control of Rydberg atoms for quantum technologies
Abstract: Rydberg atoms are the “giants” in the world of atomic physics. Their highly excited valence electron gives them remarkable properties, such as a long lifetime and extremely large dipole moments rendering them ideal for quantum technologies. For instance, Rydberg atoms interact strongly with light, polar objects, or each other. Their great sensitivity to external fields renders them ideal tools for quantum metrology. This thesis explores different applications of Rydberg atoms for quantum technologies from a quantum control perspective with a special focus on quantum measurements.
To this end, we consider single Rydberg atoms and their interaction with electromagnetic fields, either classical or quantum, and with polar molecules. More precisely, we demonstrate fast and accurate state preparation of Rydberg atoms with shaped radio-frequency pulses derived from optimal control theory. We then generalise our model to alkaline-earth atoms by suggesting an improved single-active electron model. Moreover, we discuss how to use a Rydberg atom inside a cavity as a quantum simulator for open quantum systems. Lastly, we study the multipolar character of Förster resonance energy transfer (FRET) between Rydberg atoms and polar molecules.
To this end, we consider single Rydberg atoms and their interaction with electromagnetic fields, either classical or quantum, and with polar molecules. More precisely, we demonstrate fast and accurate state preparation of Rydberg atoms with shaped radio-frequency pulses derived from optimal control theory. We then generalise our model to alkaline-earth atoms by suggesting an improved single-active electron model. Moreover, we discuss how to use a Rydberg atom inside a cavity as a quantum simulator for open quantum systems. Lastly, we study the multipolar character of Förster resonance energy transfer (FRET) between Rydberg atoms and polar molecules.
Zeit & Ort
08.04.2022 | 14:00
Hörsaal A (1.3.14)
(Fachbereich Physik, Arnimallee 14, 14195 Berlin)
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