Derives orientation-dependent effective edge theory for QSHIs showing magnetic-field-induced corner states exist as bound states even without stable bulk higher-order topological invariants.
[71,72] for proving the uniqueness of the corner state energy E0D in Eq
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Magnetic-field-induced corner states in quantum spin Hall insulators
Derives orientation-dependent effective edge theory for QSHIs showing magnetic-field-induced corner states exist as bound states even without stable bulk higher-order topological invariants.