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.
Citation:
A. A. Gorbatsevich, N. M. Shubin, “PT-symmetry breaking in resonant tunneling heterostructures”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:12 (2016), 866–871; JETP Letters, 103:12 (2016), 769–773