Group Seminar at MPQ: Towards Long-lived Ultracold Ground-state NaRb Molecules

Junyu Lin, CUHK
Group Seminar at MPQ: Towards Long-lived Ultracold Ground-state NaRb Molecules
Tuesday, 4 April, 09:00am (MEZ)

Abstract:

Ultracold polar molecules are emerging as a novel and powerful platform for applications in quantum science. One of the factors limiting the applications is their lifetime, as a result of the two-body loss between molecules. In this talk, I will first introduce our result on probing the photoinduced two-body loss for chemically stable NaRb molecules with chopped optical traps. Then I will introduce our recent work on using 3D lattices to isolate NaRb molecules from each other for avoiding two-body loss. We obtain a long-lived NaRb sample with a longest lifetime of 9(1) s in lattices. We also study the nuclear coherence time of NaRb molecules in 3D lattices, and a seconds-scale coherence is obtained. Finally, I will discuss ways to suppress the loss for a long-lived bulk sample.