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cond-mat.mes-hall2020★ 84 cited
Experimental measurement of the divergent quantum metric of an exceptional point
Qing Liao, Charly Leblanc, Jiahuan Ren +6
The geometry of Hamiltonian's eigenstates is encoded in the quantum geometric tensor (QGT). It contains both the Berry curvature, central to the description of topological matter a…
cond-mat.mes-hall2020
Spin-orbit coupling in photonic graphene
Zhaoyang Zhang, Shun Liang, Feng Li +6
We generate experimentally a honeycomb refractive index pattern in an atomic vapor cell using electromagnetically-induced transparency. We study experimentally and theoretically th…