Advances in Mathematical Physics / 2018 / Article / Fig 1

Research Article

Loss, Gain, and Singular Points in Open Quantum Systems

Figure 1

Eigenvalues and eigenfunctions of the Hamiltonian as a function of . (left), ; (right). Parameters: ; ; ; (dashed lines in a, b, f, and g). At the critical parameter value , the phase rigidity approaches value .

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