A Superdecay of an excited atom placed near ''Left-Handed'' sphere

Details A Superdecay of an excited atom placed near ''Left-Handed'' sphere A Superdecay of an excited atom placed near ''Left-Handed'' sphere

2001-02-16

arxiv.org/abs/quant-ph/0102081v2

Physics

Quantum Physics

8 pages, 6 figures, minor grammatical changes

Scientific paper

The influence of a microsphere having a simultaneously negative permittivity and permeability (Left-Handed Sphere) on the decay rate of the allowed and forbidden transitions is considered. It is found, that in contrast to usual (Right-Handed) materials it is possible to increase the decay rate by several orders of magnitude even in the case of a sphere of small radii. This enhancement is due to the fact that there exist a new type of resonance modes (LH surface modes). The analytical expressions for resonance frequencies and associated quality factors of the new modes are found.

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