Spontaneous emission from a Wigner crystal (CROSBI ID 86019)
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Podaci o odgovornosti
Lenac, Zdravko ; Tomaš, Marin-Slobodan
engleski
Spontaneous emission from a Wigner crystal
Spontaneous emission from a quasi-two-dimensional Wigner crystal is discussed from the quantum-mechanical point of view. We go beyond the dipole approximation and take into account the change in electron position during the de-excitation process. This effect becomes important for the perpendicular electron transition. The results derived for the excitation decay rate indicate (i) a very long electromagnetic lifetime of the first perpendicular excited state and (ii) a significant correction in comparison with the result obtained in the standard dipole theory.
many body and quasi-particle theories; photon emission
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