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most citedConstruction of a unique metric in quasi-Hermitian quantum mechanics: non-existence of the charge operator in a 2 x 2 matrix model

46 citations · 213 across the 23 of their papers we have counts for

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quant-ph2006★ 46 cited

Construction of a unique metric in quasi-Hermitian quantum mechanics: non-existence of the charge operator in a 2 x 2 matrix model

Miloslav Znojil, Hendrik B. Geyer

For a specific exactly solvable 2 by 2 matrix model with a PT-symmetric Hamiltonian possessing a real spectrum, we construct all the eligible physical metrics and show that none of…

cond-mat.str-el2006★ 9 cited

Analysis of the Strong Coupling Limit of the Richardson Hamiltonian using the Dyson Mapping

I. Snyman, H. B. Geyer

The Richardson Hamiltonian describes superconducting correlations in a metallic nanograin. We do a perturbative analysis of this and related Hamiltonians, around the strong pairing…