References & Citations
Quantum Physics
Title: Comment on: "On the characteristic polynomial of an effective Hamiltonian"
(Submitted on 19 Sep 2022 (v1), last revised 28 Oct 2022 (this version, v2))
Abstract: We show that a method proposed recently, based on the characteristic polynomial of an effective Hamiltonian, had been developed several years earlier by other authors in a clearer and more general way. We outline both implementations of the approach and compare them by means of the calculation of the exceptional point closest to origin for a toy model.
Submission history
From: Francisco Fernández Dr. [view email][v1] Mon, 19 Sep 2022 18:37:40 GMT (6kb)
[v2] Fri, 28 Oct 2022 16:11:58 GMT (6kb)
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