English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

From quantum mechanical first principles only, we rigorously study thetime-evolution of a $N$-level atom (impurity) interacting with an externalmonochromatic light source within an infinite system of free electrons atthermal equilibrium (reservoir). In particular, we establish the relationbetween the full dynamics of the compound system and the effective dynamics forthe $N$-level atom, which is studied in detail in [Bru-de SiqueiraPedra-Westrich, Annales Henri Poincar\'e, 13(6):1305-1370, 2012]. Together with[Bru-de Siqueira Pedra-Westrich, Annales Henri Poincar\'e, 13(6):1305-1370,2012] the present paper yields a purely microscopic theory of optical pumpingin laser physics. The model we consider is general enough to describe gaugeinvariant atom-reservoir interactions.

Characterization of the Quasi-Stationary State of an Impurity Driven by Monochromatic Light II - Microscopic Foundations