Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics V
Q 62.65: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Redoutensaal
Adiabatic flux insertion: growing quantum Hall states of cavity Rydberg polaritons — •David Dzsotjan1, Peter Ivanov2, Fabian Letscher1, Jonathan Simon3, and Michael Fleischhauer1 — 1Department of Physics and Research Center OPTIMAS, University of Kaiserslautern,Kaiserslautern, Germany — 2Department of Physics, St. Kliment Ohridski University of Sofia, Sofia, Bulgaria — 3Department of Physics and James Franck Institute, University of Chicago, Chicago, IL, USA
Fractional quantum Hall states, previously discovered in 2D electron gases in solid-state systems, exhibit an intriguing physical behaviour. We propose a scheme that enables to create such states * the so-called Laughlin states * inside a twisted optical ring resonator, using photons dressed with Rydberg interactions. Because of the cavity geometry, these Rydberg polaritons experience an artificial magnetic field leading to Landau levels. Interactions lead to a splitting of the many-body spectrum with gapped states at even fractional fillings. Our aim is to prepare the most stable one, the Laughlin state with filling 1/2 using the growing technique suggested in [1,2]. A key feature of the scheme is the controlled insertion of single photon and magnetic flux quanta into the cavity system. For the insertion of flux quanta we propose and analyze an adiabatic method for transferring external orbital angular momentum from classical light beams to the cavity photons by using light-matter interaction as a mediator. [1] F.Grusdt et al., PRL 113, 155301 (2014) [2] F. Letscher et al., PRB 91, 184302 (2015)