48 citations · 106 across the 8 of their papers we have counts for
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quant-ph2007★ 5 cited
Non-Hermitian Hamilton operator in open quantum systems
Ingrid Rotter
In the Feshbach projection operator (FPO) formalism the whole function space is divided into two subspaces. One of them contains the wave functions localized in a certain finite re…
quant-ph2007
Unified description of resonance and decay phenomena
Ingrid Rotter
In the Feshbach projection operator formalism, resonance as well as decay phenomena are described by means of the complex eigenvalues and eigenfunctions of the non-Hermitian Hamilt…
quant-ph2007★ 15 cited
The brachistochrone problem in open quantum systems
Ingrid Rotter
Recently, the quantum brachistochrone problem is discussed in the literature by using non-Hermitian Hamilton operators of different type. Here, it is demonstrated that the passage…