Ultracold@HKU
Ultracold Atom-Ion Hybrid
Finding new paradigm for ultracold experiments
Experimental atomic, molecular and optical physics: This research lab focuses on the preparation, manipulation and detection of ultracold neutral atoms, molecules and ions using laser light, external electric and magnetic fields and high finesse multimode optical cavities. Such quantum experiments inside ultra-high vacuum chambers provide a pristine and versatile platform for the exploration of quantum phases of matter and their dynamics at mesoscopic scale with the precision of atomic physics. The preparation of atoms and molecules close to absolute zero temperature also offers unique opportunities for discovering laws governing ultracold chemistry, where quantum superposition and entanglement dominates the reaction process. Recent research includes the realization of the transition from an atomic to a molecular Bose-Einstein condensate (BEC), observation of the associated quantum many-body chemical reaction process and novel quantum dynamics in periodically driven atomic BECs.
Direct Ionization of Ultracold Atoms
Ionize near threshold
All Optical Trapping of Ion
Direct optical trap of ions
Atom-Ion Hybrid System
Finding new paradigm for ultracold experiments
Confocal Cavity
Versatile optical control
Direct Coupling to Gauge Field
Ions can show potential of direct coupling to electromagnetic gauge field in AMO experiments
Impurity Physics
Finding new paradigm for ultracold experiments
Yb Neutral Atom Quantum Computing
Alkali-Earth-Like Metal Neutral Atom Quantum Computing
Ytterbium has a rich electronic structure, possessing strong optical transitions, narrow-line transitions, clock states, metastable states and Rydberg states. Different tasks in quantum computing—such as cooling, imaging, quantum-state storage, gate operations, and readout—can be assigned to different optical transitions.
Our laboratory has been cultivating a rich repertoire of advanced AMO experimental capabilities, with the outlook of establishing technological foundations for next-generation quantum computing devices.