Bosonic Condensation and Disorder-Induced Localization in a Flat Band

التفاصيل البيبلوغرافية
العنوان: Bosonic Condensation and Disorder-Induced Localization in a Flat Band
المؤلفون: Baboux, F., Ge, L., Jacqmin, T., Biondi, M., Lemaître, A., Gratiet, L. Le, Sagnes, I., Schmidt, S., Türeci, H. E., Amo, A., Bloch, J.
المصدر: Phys. Rev. Lett. 116, 066402 (2016)
سنة النشر: 2015
المجموعة: Condensed Matter
Physics (Other)
مصطلحات موضوعية: Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Quantum Gases, Physics - Optics
الوصف: We report on the engineering of a non-dispersive (flat) energy band in a geometrically frustrated lattice of micro-pillar optical cavities. By taking advantage of the non-hermitian nature of our system, we achieve bosonic condensation of exciton-polaritons into the flat band. Due to the infinite effective mass in such 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.
Comment: 5 pages, 4 figures. Supplemental material available here as an ancillary file
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevLett.116.066402
URL الوصول: http://arxiv.org/abs/1505.05652
رقم الأكسشن: edsarx.1505.05652
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevLett.116.066402