A5014606177- Cold Atom Physics and Bose-Einstein Condensates
- Quantum, superfluid, helium dynamics
- Atomic and Subatomic Physics Research
- Spectroscopy and Laser Applications
- Quantum Information and Cryptography
- Advanced Chemical Physics Studies
- Robotics and Sensor-Based Localization
- Remote Sensing and LiDAR Applications
- Strong Light-Matter Interactions
- Data Management and Algorithms
- Atomic and Molecular Physics
- Advanced Frequency and Time Standards
- Analytical Chemistry and Chromatography
- Quantum Mechanics and Applications
- Mass Spectrometry Techniques and Applications
Chinese University of Hong Kong
2020-2022
Bose-Einstein condensates (BECs) confined on shell-shaped surfaces have been proposed as a platform for exploring many nontrivial quantum phenomena curved spaces. However, the trapping potential generated with conventional radio frequency dressing method is very sensitive to gravity, so far experimental studies of shell BECs can only be performed in micro-gravity environments. Here, we overcome this difficulty and create BEC presence Earth's gravity immiscible dual-species sodium rubidium...
The ultracold mixture of $^{23}\mathrm{Na}$ and $^{87}\mathrm{Rb}$ atoms has become an important system for investigating physics in Bose-Bose atomic mixtures forming ground-state polar molecules. In this work, we provide improved characterization the most commonly used Feshbach resonance near 347.64 G between their absolute ground states. We form molecules using measure binding energies by dissociating them via magnetic-field modulation. use to refine singlet triplet potential-energy...
We demonstrate detection of NaRb Feshbach molecules at high magnetic field by combining molecular photodissociation and absorption imaging the photofragments. The process is carried out via a spectroscopically selected hyperfine Zeeman level correlated with Na ($3{P}_{3/2}$) $+$ Rb ($5{S}_{1/2}$) asymptote which, following spontaneous emission optical pumping, leads to ground-state atoms in single near unity probability. Subsequent dissociation, number obtained detecting resultant...
The beyond-mean-field Lee-Huang-Yang (LHY) correction is ubiquitous in dilute ultracold quantum gases. However, its effects are often elusive due to the typically much larger influence of mean-field (MF) energy. In this work, we study an mixture $^{23}\mathrm{Na}$ and $^{87}\mathrm{Rb}$ with tunable attractive interspecies interactions. LHY manifest formation self-bound liquid droplets expansion dynamics gas-phase sample. A liquid-to-gas-phase diagram obtained by measuring critical atom...