期刊
PHYSICAL REVIEW LETTERS
卷 116, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.116.066402
关键词
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资金
- Agence Nationale de la Recherche project Quandyde [ANR-11-BS10-001]
- French RENATECH network
- European Research Council
- EU-FET Proactive grant AQuS [640800]
- NSF [DMR-1151810]
- Swiss NSF through an Ambizione fellowship [PZ00P2_142539]
- CUNY [CIRG-802091621]
- NCCR QSIT
- Swiss National Science Foundation (SNF) [PZ00P2_142539] Funding Source: Swiss National Science Foundation (SNF)
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1151810] Funding Source: National Science Foundation
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.
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