Multiphoton quantum interference on a dipole-forbidden transition

Akram, U, Evers, J and Keitel, CH (2005) Multiphoton quantum interference on a dipole-forbidden transition. Journal of Physics B: Atomic, Molecular, and Optical Physics, 38 4: L-69-L-77. doi:10.1088/0953-4075/38/4/L01

Author Akram, U
Evers, J
Keitel, CH
Title Multiphoton quantum interference on a dipole-forbidden transition
Journal name Journal of Physics B: Atomic, Molecular, and Optical Physics   Check publisher's open access policy
ISSN 0953-4075
Publication date 2005-02-28
Sub-type Article (original research)
DOI 10.1088/0953-4075/38/4/L01
Volume 38
Issue 4
Start page L-69
End page L-77
Total pages 9
Place of publication Bristol, U.K.
Publisher Institute of Physics Publishin
Language eng
Abstract We investigate the effect of an intense low-frequency field on the population decay of an excited two-level atom, where the two states are connected by a dipole-forbidden transition. In addition to the natural two-photon spontaneous decay, the low-frequency field gives rise to induced two-photon processes, where one of the two photons is spontaneous. Due to the low frequency of the applied field, the induced decay pathways may interfere with each other. We show how varying the parameters of the applied field allows switching between constructive and destructive interference, thereby increasing or decreasing the induced transition rate as compared to the rate without interference. As all relevant competing transitions are of the same multiphoton order, the system is a promising candidate to verify the idea of spontaneous-emission interference induced by multiphoton pathways experimentally. © 2005 IOP Publishing Ltd
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Published under "Letters to the Editor".

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
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Created: Thu, 03 Mar 2011, 11:42:53 EST by Ms Uzma Akram on behalf of Physics