Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Validity of rate equations for Zeeman coherences for analysis of nonlinear interaction of atoms with broadband laser radiation
 

Summary: Validity of rate equations for Zeeman coherences for analysis of nonlinear interaction
of atoms with broadband laser radiation
Kaspars Blushs and Marcis Auzinsh
Department of Physics, University of Latvia, 19 Rainis Blvd., Riga LV-1586, Latvia
(Received 27 December 2003; published 9 June 2004)
In this paper we obtain the rate equations for Zeeman coherences in the broad-line approximation and
steady-state balance equations directly from optical Bloch equations without the use of the perturbation theory.
The broad-line approximation allows us to use the adiabatic elimination procedure in order to eliminate the
optical coherences from the optical Bloch equations, but the steady-state condition allows us to derive the
balance equations in a straightforward way. We compare our approach with the perturbation-theory approach as
given previously and show that our approach is more flexible for analyzing various experiments. Meanwhile
we also show the validity and limitations of the application of the rate equations in experiments with coherent
atomic excitation when either the broad-line approximation or steady-state conditions hold. Thus we have
shown the basis for modeling the coherent atomic excitation experiments by using the relatively simple rate
equations, provided that certain experimental conditions hold.
DOI: 10.1103/PhysRevA.69.063806 PACS number(s): 42.50.Gy, 32.80.Bx, 32.60. i
I. INTRODUCTION
Coherent effects in the interaction of laser radiation with
atoms and molecules play a major role in physics and chem-
istry. Applications such as electromagnetically induced trans-

  

Source: Auzinsh, Marcis - Department of Physics, University of Latvia

 

Collections: Physics