Vacuum-induced coherences in radiatively coupled multilevel systems

Agarwal, G. S. ; Patnaik, Anil K. (2001) Vacuum-induced coherences in radiatively coupled multilevel systems Physical Review A, 63 (4). 043805_1-043805_8. ISSN 1050-2947

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We show that radiative coupling between two multilevel atoms having near-degenerate states can produce new interference effects in spontaneous emission. We explicitly demonstrate this possibility by considering two identical V systems each having a pair of transition dipole matrix elements that are orthogonal to each other. We discuss in detail the origin of the new interference terms and their consequences. Such terms lead to the evolution of certain coherences and excitations that would not occur otherwise. The special choice of the orientation of the transition dipole matrix elements enables us to illustrate the significance of vacuum-induced coherence in multiatom multilevel systems. These coherences can be significant in energy transfer studies.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:78372
Deposited On:19 Jan 2012 12:13
Last Modified:18 May 2016 21:12

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