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Surface states on a topologically non-trivial semimetal: The case of Sb(110)
Surface states topologically non-trivial semimetal Sb(110)
2012/2/27
The electronic structure of Sb(110) is studied by angle-resolved photoemission spectroscopy and first-principle calculations, revealing several electronic surface states in the projected bulk band gap...
Can an astrophysical black hole have a topologically non-trivial event horizon?
astrophysical black hole topologically non-trivial horizon
2011/10/17
In 4-dimensional General Relativity, there are several theorems restricting the topology of the event horizon of a black hole. In the stationary case, black holes must have a spherical horizon, while ...