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Results tagged with dirac-equation
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user 401395
A fully relativistic (Lorentz covariant) description, first put forward by Paul Dirac in 1928, of the first quantized, spin one half fermion with nonzero mass. Physical notions to do with this equation include the Dirac sea, Dirac hole theory, the Klein Paradox and the fine structure of the Hydrogen spectrum.
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Why do the edge states of a topological insulator always have zero energy?
Recently, I am learning the topological insulator, I learned about SSH model, and found out that the edge states of topological insulator always have zero energy, but on the other side,we define edge …
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