Direct observation of photonic Landau levels and helical edge states in strained honeycomb lattices

作     者：Omar Jamadi Elena Rozas Grazia Salerno Marijana Milicevic Tomoki Ozawa Isabelle Sagnes Aristide Lemaitre Luc Le Gratiet Abdelmounaim Harouri Iacopo Carusotto Jacqueline Bloch Alberto Amo Omar Jamadi;Elena Rozas;Grazia Salerno;Marijana Mili?evi?;Tomoki Ozawa;Isabelle Sagnes;Aristide Lema?tre;Luc Le Gratiet;Abdelmounaim Harouri;Iacopo Carusotto;Jacqueline Bloch;Alberto Amo

作者机构：Universite de LilleCNRSUMR 8523—PhLAM—Physique des Lasers Atomes et Molecules59000 LilleFrance Depto.de Fisica de Materiales e Instituto Nicolas CabreraUniversidad Autonoma de Madrid(UAM)28049 MadridSpain Center for Nonlinear Phenomena and Complex SystemsUniversite Libre de BruxellesCP 231Campus PlaineB-1050 BrusselsBelgium Universite Paris-SaclayCNRSCentre de Nanosciences et de Nanotechnologies91120 PalaiseauFrance Interdisciplinary Theoretical and Mathematical Sciences Program(iTHEMS)RIKENWakoSaitama 351-0198Japan INO-CNR BEC Center and Dipartimento di FisicaUniversita di Trento38123 PovoItaly 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2020年第9卷第1期

页      面：627-636页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：supported by the ERC grant Honeypol,the H2020-FETFLAG project PhoQus(820392) the QUANTERA project Interpol(ANR-QUAN-0003-05) the French National Research Agency project Quantum Fluids of Light(ANR-16-CE30-0021) the French government through the Programme Investissement d’Avenir(I-SITE ULNE/ANR-16-IDEX-0004 ULNE)managed by the Agence Nationale de la Recherche the French RENATECH network,the Labex CEMPI(ANR-11-LABX-0007) the CPER Photonics for Society P4S and the Metropole Europeenne de Lille(MEL)via the project TFlight financial support from the FPI Scholarship No.BES-2015-074708 the Spanish MINECO grant No.MAT2017-83722-R supported by funding from the ERC Starting Grant TopoCold supported by JSPS KAKENHI Grant Number JP18H05857 JST PRESTO Grant Number JPMJPR19L2 JST CREST Grant Number JPMJCR19T1 the RIKEN Incentive Research Project the Interdisciplinary Theoretical and Mathematical Sciences Program(iTHEMS)at RIKEN 

主　　题：Landau helical realization 

摘      要：We report the realization of a synthetic magnetic field for photons and polaritons in a honeycomb lattice of coupled semiconductor micropillars.A strong synthetic field is induced in both the s and p orbital bands by engineering a uniaxial hopping gradient in the lattice,giving rise to the formation of Landau levels at the Dirac *** provide direct evidence of the sublattice symmetry breaking of the lowest-order Landau level wavefunction,a distinctive feature of synthetic magnetic *** realization implements helical edge states in the gap between n=0 and n=±1 Landau levels,experimentally demonstrating a novel way of engineering propagating edge states in photonic *** light of recent advances in the enhancement of polariton–polariton nonlinearities,the Landau levels reported here are promising for the study of the interplay between pseudomagnetism and interactions in a photonic system.