6533b858fe1ef96bd12b65ac
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Evanescent wave approximation for non-Hermitian Hamiltonians
Anna NapoliBenedetto Militellosubject
Evanescent waverotating wave approximationeffective HamiltonianGeneral Physics and AstronomyFOS: Physical scienceslcsh:Astrophysics01 natural sciencesArticle010305 fluids & plasmassymbols.namesake0103 physical scienceslcsh:QB460-466non-Hermitian HamiltonianLimit (mathematics)quantum Zeno effect010306 general physicslcsh:ScienceMathematical physicsQuantum Zeno effectCouplingPhysicsQuantum PhysicsBasis (linear algebra)open quantum systemsEffective hamiltonian Non-hermitian hamiltonian Open quantum systems Quantum zeno effect Rotating wave approximationHermitian matrixlcsh:QC1-999symbolsRotating wave approximationlcsh:QHamiltonian (quantum mechanics)Quantum Physics (quant-ph)lcsh:Physicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-06-04 |