https://doi.org/10.1140/epjp/i2017-11360-9
Regular Article
Coherence and information dynamics of a 
-type three-level atom interacting with a damped cavity field
1
College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Al-Aflaj, Saudi Arabia
2
Faculty of Science, Assiut University, Assiut, Egypt
3
Institute for Quantum Science and Engineering, Texas A&M University, 77843, College Station, TX, USA
4
Department of Physics, McGill University, H3A 2T8, Montreal, Canada
* e-mail: abdelbastm@yahoo.com
Received:
29
August
2016
Accepted:
19
January
2017
Published online:
15
February
2017
An analytical description of a three-level atom in an optical cavity coupled to the environment is obtained. The Husimi function and the Wehrl density are calculated to investigate the information loss dynamics of the phase space. The Wehrl entropy and the atomic information entropy are explored to study the coherence loss of the three-level system. We show that these measures, as non-classical indicators, are very sensitive not only to the coupling strength to the reservoir but also to the initial state.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2017
