AMO Seminar: Uros Delic, University of Vienna, “Many-body physics in a trap array of silica particles: Non-reciprocal interactions and collective mechanical phases”

Event time: 
Monday, July 24, 2023 - 1:00pm to 2:00pm
Sloane Physics Laboratory SPL, Room 51 See map
217 Prospect Street
New Haven, CT 06511
Uros Delic, University of Vienna

Event description: 

Interactions control and drive the collective dynamics and emergence of correlations and patterns in many-body systems. Dissipative (i.e., non-conservative) interactions are particularly interesting as they give rise to exotic non-equilibrium dynamics and generate novel topological phases. Moreover, they are a key ingredient to engineer non-reciprocal interactions, which have many applications for quantum sensing.
In my talk, I will introduce a novel many-body quantum system: a trap array of nanoparticles that interact via highly tunable light-induced dipole-dipole forces. I will show how we realize quantum control over the motion of a single particle and program arbitrary non-Hermitian dynamics in a particle array. Finally, I will present a recent observation of a collective mechanical phase that stems from the non-reciprocal interaction, which demonstrates the potential of this system to explore complex non-equilibrium phenomena.
Host: David Moore (