Grigoryan, G., Chaltykyan, V., Gazazyan, E., Tikhova, O. and Paturyan, V. (2015) Pulse propagation, population transfer, and light storage in five-level media. Physical Review A, 91 (2). 023802. ISSN 1050-2947
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Abstract
We consider adiabatic interaction of five-level atomic systems and their media with four short laser pulses
under the condition of all two-photon detunings being zero. We derive analytical expressions for eigenvalues of
the system’s Hamiltonian and determine conditions of adiabaticity for both the atom and the medium.We analyze,
in detail, the system’s behavior when the eigenvalue with nonvanishing energy is realized. As distinct from the
usual dark state of a five-level system (corresponding to zero eigenvalue), which is a superposition of three
states, in our case the superposition of four states does work. We demonstrate that this seemingly unfavorable
case nevertheless completely imitates a three-level system not only for a single atom but also in the medium,
since the propagation equations are also split into those for three- and two-level media separately. We show that,
under certain conditions, all the coherent effects observed in three-level media, such as population transfer, light
slowing, light storage, and so on, may efficiently be realized in five-level media. This has an important advantage
that the light storage can be performed twice in the same medium; i.e., the second pulse can be stored without
retrieving the first one, and then the two pulses can be retrieved in any desired sequence.
Item Type: | Article |
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Additional Information: | This article is available at Pulse propagation, population transfer, and light storage in five-level media G. Grigoryan, V. Chaltykyan, E. Gazazyan, O. Tikhova, and V. Paturyan Phys. Rev. A 91, 023802 (2015) DOI: 10.1103/PhysRevA.91.023802 ©2015 American Physical Society |
Keywords: | Pulse propagation; population transfer; light storage; five-level media; |
Academic Unit: | Faculty of Science and Engineering > Computer Science |
Item ID: | 6073 |
Identification Number: | 10.1103/PhysRevA.91.023802 |
Depositing User: | Vanush Paturyan |
Date Deposited: | 23 Apr 2015 15:07 |
Journal or Publication Title: | Physical Review A |
Publisher: | American Physical Society |
Refereed: | Yes |
Related URLs: | |
URI: | https://mural.maynoothuniversity.ie/id/eprint/6073 |
Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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