Observation of the Interacting 3D Anderson Metal Insulator Transition with Kicked Quantum Gases

Quantum transport in disordered systems is a long-standing fundamental problem that continues to pose challenges, especially in the presence of many-body interactions.

In this talk, we present our experimental investigation of interaction effects on the 3D Anderson Metal-Insulator Transition (MIT) using kicked quantum gases of bosonic ¹⁷⁴Yb in a synthetic momentum lattice [1]. Going beyond our earlier work with periodic kicking [2], the application of quasi-periodic kicks allows access to higher dimensions in the synthetic momentum space. Our results show that many-body interactions can drive delocalization in the Anderson insulator and shift the transition boundary. The observed delocalization is sub-diffusive with a non-universal exponent. We also compare our findings to numerical simulations based on mean-field treatments.

In addition, we will present our progress on an ongoing project to investigate kicked quantum gases of paired ⁶Li fermions with tunable interactions. This system provides access to the study of quantum transport with strong tunable interactions and in the presence of pairing.