"One thing exciting about this experiment is that right now, there are not a lot of people doing these sorts of things鈥攃ombining cryogenics with optical tweezers," says Ting-Wei Hsu, a graduate student working with Cindy Regal (Physics, JILA) at Q-SEnSE, an NSF Quantum Leap Institute led by 欧美口爆视频 Boulder.