%0 Journal Article %T A Superdecay of an excited atom placed near ''Left-Handed'' sphere %A V. V. Klimov %J Physics %D 2001 %I arXiv %X 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. %U http://arxiv.org/abs/quant-ph/0102081v2