Freiburg 2024 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 33: Poster VI

A 33.5: Poster

Donnerstag, 14. März 2024, 17:00–19:00, Tent A

Experimental investigation of strongly interacting quantum fluids of light in rydberg atoms — •Amar Bellahsene — Université de Strasbourg CESQ-ISIS, Strasbourg, France

Photons are effectively perfect quantum systems as they can be easily and efficiently generated, manipulated and detected, except they have one major drawback: they are inherently non-interacting. If we could engineer strong and tunable interactions between photons it would be a great leap forward for numerous fields, especially in many-body physics, quantum simulation and quantum computing. One of the most promising methods to simultaneously realize strong light-matter couplings and strong effective photon-photon interactions is in ultracold gases which are laser coupled to strongly-interacting Rydberg states under an electromagnetically induced transparency (EIT) resonance. My experimental PhD project consists of investigating the relatively unexplored regime where strongly interacting photons with exotic properties (long-range and nonlocal interactions) propagate inside spatially structured ultracold 39K atoms with optical tweezers.

Keywords: rydberg; tweezers; electromagnetically induced transparency (EIT); photon-photon interactions; nonlinearity