Year: 2016
Type: article
Abstract: We suggest a method for accurate parameter estimation of atomic systems, employing the special properties of the exceptional points. The non-Hermitian degeneracies at the exceptional points emerge from the description of the spontaneous emission of the atomic system in the framework of an open quantum system, resulting in a non-Hermitian quantum master equation. The method is demonstrated for the atomic spectrum of $S\ensuremath{\rightarrow}P$ transitions of $^{85}\mathrm{Rb}$ and $^{40}\mathrm{Ca}^{+}$.
Source: Physical Review A
Institution: Hebrew University of Jerusalem
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funder: Israel Science Foundation
Awards: G4134610728, G4250553203
OpenAlex ID: W2280245104