Spontaneous decay of excited atomic states near a carbon nanotube

Details Spontaneous decay of excited atomic states near a carbon nanotube Spontaneous decay of excited atomic states near a carbon nanotube

2002-04-19

arxiv.org/abs/cond-mat/0204433v1

Phys. Rev. Lett. 89, 115504 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.89.115504

Spontaneous decay process of an excited atom placed inside or outside (near the surface) a carbon nanotube is analyzed. Calculations have been performed for various achiral nanotubes. The effect of the nanotube surface has been demonstrated to dramatically increase the atomic spontaneous decay rate -- by 6 to 7 orders of magnitude compared with that of the same atom in vacuum. Such an increase is associated with the nonradiative decay via surface excitations in the nanotube.

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