2000 character limit reached
PT-symmetry breaking in resonant tunneling heterostructures
Published 12 Apr 2016 in cond-mat.mes-hall and cond-mat.other | (1604.03385v1)
Abstract: We present fermionic model based on symmetric resonant tunneling heterostructure, which demonstrates spontaneous symmetry breaking in respect to combined operations of space inversion (P) and time reversal (T). PT-symmetry breaking manifests itself in resonance coalescence (collapse of resonances). We show that resonant energies are determined by eigenvalues of auxiliary pseudo-Hermitian PT-invariant Hamiltonian.
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