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

Author(s)

Bru, Jean-Bernard ^{[1, 2, 3]} ; Pedra, Walter de Siqueira ^[4]

Affiliation

^[1] Univ Basque Country, Dept Matemat, Fac Ciencia & Tecnol, E-48080 Bilbao - Spain

^[2] BCAM, Bilbao 48009 - Spain

^[3] Ikerbasque, Basque Fdn Sci, E-48011 Bilbao - Spain

^[4] Univ Sao Paulo, Dept Fis Matemat, Inst Fis, BR-05314970 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: ANNALES HENRI POINCARE; v. 16, n. 6, p. 1429-1477, JUN 2015.
• Web of Science Citations: 1

Abstract

From quantum mechanical first principles only, we rigorously study the time-evolution of a N-level atom (impurity) interacting with an external monochromatic light source within an infinite system of free electrons at thermal equilibrium (reservoir). In particular, we establish the relation between the full dynamics of the compound system and the effective dynamics for the N-level atom, which is studied in detail in Bru et al. (Ann Henri Poincar, 13(6):1305-1370, 2012). Together with Bru et al. (Ann Henri Poincar, 13(6):1305-1370, 2012) the present paper yields a purely microscopic theory of optical pumping in laser physics. The model we consider is general enough to describe gauge invariant atom-reservoir interactions. (AU)

• FAPESP's process: 13/13215-5 - Heat production in Infinitely extended fermion systems subjected to electric fields
• Grantee: Walter Alberto de Siqueira Pedra
• Support Opportunities: Regular Research Grants