 06286 Heribert Zenk
 Ionisation by quantised electromagnetic fields: The photoelectric effect
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Oct 10, 06

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Abstract. In this paper we explain the photoelectric effect in a variant of the standard model of non relativistic quantum electrodynamics, which is in some aspects more closely related to the physical picture, than the one studied in [BKZ]: Now we can apply our results to an electron with more than one bound state and to a larger class of electronphoton interactions. We will specify a situation, where ionisation probability in second ordeer is a weighted sum of single photon terms. Furthermore we will see, that Einstein's equality
\[E_{kin}=h\nu\bigtriangleup E >0\]
for the maximal kinetic energy $E_{kin}$ of the electron, energy $h\nu$ of the photon and ionisation gap $\bigtriangleup E$ is the crucial condition, for these single photon terms to be nonzero.
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