Bosonic Condensation and Disorder-Induced Localization in a Flat Band.
- Baboux F Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- Ge L Department of Engineering Science and Physics, College of Staten Island, CUNY, New York 10314, USA.
- Jacqmin T Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- Biondi M Institute for Theoretical Physics, ETH Zurich, 8093 Zurich, Switzerland.
- Galopin E Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- Lemaître A Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- Le Gratiet L Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- Sagnes I Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- Schmidt S Institute for Theoretical Physics, ETH Zurich, 8093 Zurich, Switzerland.
- Türeci HE Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA.
- Amo A Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- Bloch J Laboratoire de Photonique et de Nanostructures (LPN), CNRS, Université Paris-Saclay, route de Nozay, F-91460 Marcoussis, France.
- 2016-02-27
Published in:
- Physical review letters. - 2016
English
We report on the engineering of a nondispersive (flat) energy band in a geometrically frustrated lattice of micropillar optical cavities. By taking advantage of the non-Hermitian nature of our system, we achieve bosonic condensation of exciton polaritons into the flat band. Because of the infinite effective mass in such a band, the condensate is highly sensitive to disorder and fragments into localized modes reflecting the elementary eigenstates produced by geometric frustration. This realization offers a novel approach to studying coherent phases of light and matter under the controlled interplay of frustration, interactions, and dissipation.
- Language
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- English
- Open access status
- hybrid
- Identifiers
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- DOI 10.1103/PhysRevLett.116.066402
- PMID 26919002
- Persistent URL
- https://folia.unifr.ch/global/documents/277176
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