Temperature dependence of superradiance intensity |
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Authors: | E V Orlenko B G Matisov |
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Institution: | (1) St. Petersburg State Technical University, 195251 St. Petersburg, Russia |
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Abstract: | Using the idea of exchange interaction in a system of two-level atoms participating in a superradiance process, we derive
from first principles the superradiance Hamiltonian of such a system, which is found to be analogous to the Heisenberg Hamiltonian.
We consistently calculate the coupling constant of the interaction that leads to the emergence of a superradiance state in
the system. We also predict the existence of isospin excitations in the superradiance state, whose presence reduces the intensity
of the corresponding superradiance pulse. Finally, we calculate the temperature dependence of the intensity of the superradiance
pulse and find it be analogous to the Bloch T
3/2-law for spin systems.
Zh. éksp. Teor. Fiz. 116, 1148–1160 (October 1999) |
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Keywords: | |
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