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Edge states and topological phases in non-Hermitian systems
Edge states topological phases non-Hermitian systems Mesoscale and Nanoscale Physics
2011/9/30
Abstract: Topological stability of the edge states is investigated for non-Hermitian systems. We examine two classes of non-Hermitian Hamiltonians supporting real bulk eigenenergies in weak non-Hermit...
Galois Conjugates of Topological Phases
conformal field theories topological quantum field theories Galois Conjugates
2011/7/28
Abstract: Galois conjugation relates unitary conformal field theories (CFTs) and topological quantum field theories (TQFTs) to their non-unitary counterparts. Here we investigate Galois conjugates of ...
Topological phases and flat surface bands in superconductors without inversion symmetry
Topological phases flat surface bands superconductors without inversion symmetry
2010/11/18
We examine different topological phases in three-dimensional non-centrosymmetric superconductors with time-reversal symmetry by using three different types of topological invariants. Due to the bulk b...