Evanescent wave approximation for non-Hermitian Hamiltonians

Anna Napoli, Benedetto Militello, Anna Napoli, Benedetto Militello

Research output: Contribution to journalArticlepeer-review

Abstract

The counterpart of the rotating wave approximation for non-Hermitian Hamiltonians is considered, which allows for the derivation of a suitable effective Hamiltonian for systems with some states undergoing decay. In the limit of very high decay rates, on the basis of this effective description we can predict the occurrence of a quantum Zeno dynamics, which is interpreted as the removal of some coupling terms and the vanishing of an operatorial pseudo-Lamb shift.
Original languageEnglish
Pages (from-to)624-
Number of pages12
JournalEntropy
Volume22
Publication statusPublished - 2020

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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