Tue November 12, 2024 4:00 pm
CUA Seminar – Clément Sayrin: Interacting Laser-Trapped Circular Rydberg Atoms
Location:MIT 4-270
Clément Sayrin,
Laboratoire Kastler Brossel
Ten Minute Talk:"Probing the geometric structure of an atom array with Bragg scattering into a high-cooperativity bow-tie cavity" by
Guoqing Wang,
MIT
Circular Rydberg atoms, i.e., Rydberg atoms with maximal orbital momentum, ideally combine long coherence times and strong interactions. Their lifetimes, typically 100 times longer than their low-momentum counterparts, make them ideally suited to the quantum simulation of the dynamics of interacting quantum systems. Dipole-dipole interaction between two such atoms, however, had not been observed so far.
In this presentation, I will report on the first measurement and characterization of the resonant dipole-dipole interaction between two circular Rydberg atoms. We laser trap individual circular Rydberg atoms in an array of hollow optical tweezers and characterize their interaction through microwave spectroscopy. We also observe the coupling between spin and motional degrees of freedom that the interaction can induce. I will eventually present how we use dipole-dipole interactions to locally manipulate and non-destructively detect circular Rydberg atoms in the array.