Spin superradiance versus atomic superradiance

Details Spin superradiance versus atomic superradiance Spin superradiance versus atomic superradiance

2005-06-14

arxiv.org/abs/cond-mat/0506322v1

Laser Phys. Lett. 2 (2005) 356-361

Physics

Condensed Matter

Statistical Mechanics

Latex file, 12 pages, no figures

Scientific paper

A comparative analysis is given of spin superradiance and atomic superradiance. Their similarities and distinctions are emphasized. It is shown that, despite a close analogy, these phenomena are fundamentally different. In atomic systems, superradiance is a self-organized process, in which both the initial cause, being spontaneous emission, as well as the collectivizing mechanism of their interactions through the common radiation field, are of the same physical nature. Contrary to this, in actual spin systems with dipole interactions, the latter are the major reason for spin motion. Electromagnetic spin interactions through radiation are negligible and can never produce collective effects. The possibility of realizing superradiance in molecular magnets by coupling them to a resonant circuit is discussed.

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