An excitonic Bose–Einstein condensate has so far been realized only in particular semiconductor heterostructure setups. Now, experiments show that such condensates can form in double graphene bilayers separated by hexagonal boron nitride.

中文翻译：

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范德华（Van der Waals）异质结构：令人兴奋的双层

迄今为止，仅在特定的半导体异质结构设置中才实现了激子玻色-爱因斯坦冷凝物。现在，实验表明，这种冷凝物可以在由六方氮化硼分隔的双石墨烯双层中形成。