Evanescent Wave Approximation for Non-Hermitian Hamiltonians

• URL: http://arxiv.org/abs/2108.01324v1
• Date: Tue, 3 Aug 2021 06:57:22 GMT
• Title: Evanescent Wave Approximation for Non-Hermitian Hamiltonians
• Authors: Benedetto Militello and Anna Napoli
• Abstract summary: The counterpart of the rotating wave approximation for non-Hermitian Hamiltonians is considered. 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.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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 decays. 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.

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