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This is a nice practical technique for open quantum systems with relatively low entanglement. The introduction lays out exactly what regime they're aiming at: 1. Affordable (laptop…

Physicist here. The superconductivity in layered graphene is indeed surprisingly strange, but this popular article may not do it justice. Here are some older articles on the same t…

Alright, this one is pretty interesting but, as usual, it needs some amount of background to appreciate it properly. Let me try to make an elementary summary. Electrons in a crysta…