Graviton modes survive on the lattice
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In some materials, when many electrons interact very strongly, they behave collectively like a quantum fluid with unusual properties. One example is a Fractional Quantum Hall state, which occurs in a two-dimensional system under a strong magnetic field. In this state, the electrons form a topologically ordered quantum fluid that supports unusual collective excitations.
A Fractional Chern Insulator aims to recreate the same type of physics without requiring such a strong magnetic field. Instead,
A Fractional Chern Insulator aims to recreate the same type of physics without requiring such a strong magnetic field. Instead,
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