Open system effects on slow light and electromagnetically induced transparency
2011 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 44, no 13, 135501- p.Article in journal (Refereed) Published
The coherence properties of a three-level $\Lambda$-system influenced by a Markovian environment are analyzed. A coherence vector formalism is used and a vector form of the Lindblad equation is derived. Together with decay channels from the upper state, open system channels acting on the subspace of the two lower states are investigated, i.e., depolarization, dephasing, and amplitude damping channels. We derive an analytic expression for the coherence vector and the concomitant optical susceptibility, and analyze how the different channels influence the optical response. This response depends non-trivially on the type of open system interaction present, and even gain can be obtained. We also present a geometrical visualization of the coherence vector as an aid to understand the system response.
Place, publisher, year, edition, pages
2011. Vol. 44, no 13, 135501- p.
Electromagnetically induced transparency, slow light, cold atoms, open quantum systems
Physical Sciences Atom and Molecular Physics and Optics
Research subject Physics with spec. in Atomic, Molecular and Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-149236DOI: 10.1088/0953-4075/44/13/135501OAI: oai:DiVA.org:uu-149236DiVA: diva2:404105
FunderSwedish Research Council
Additional address (E. Sjöqvist): Centre for Quantum Technologies, NUS, Singapore2011-03-162011-03-162011-10-07Bibliographically approved