Tuesday, September 29 2020
11:00 - 12:15

IMSc Webinar

Twistless simulation of twistronics

Dr. Debraj Rakshit

ICFO – The Institute of Photonic Sciences, Spain

Twistronics, which describes the physics resulting from the twist between layers of two-dimensional materials, allows inducing strong correlation effects, superconductivity, magnetism and topology. The interesting phenomenology of twisted materials is apparently related to the formation of moiré patterns around small twist angles causing strong modification of the band structure. Emulating this physics beyond materials research can help in the identification of key minimal ingredients that give rise to the exquisite phenomenology of, so called, "magic-angle" twisted bilayer graphene, while also providing additional microscopic control. Ultracold atoms in optical lattices, in principle, provide a very promising and a highly tunable platform to explore emergent many-body phenomena with far reaching implications in the fundamental understanding, and also paves way for exciting future technology, such as quantum computer, quantum metrology. In this talk I will lay out an idea for achieving twistronics-like physics via an ultracold simulator by elegantly employing a "spécialité de la maison" - a synthetic dimension, and spatially modulated Raman transitions.


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