Abstract:
A theory of two-atom quantum transitions with optical photon frequency doubling is developed on the basis of the third order QED effects consisting in virtual photon exchange and emission (absorption) of a double-frequency real photon. In these effects we distinguish two parts of interaction corresponding to intermediate states with positive and negative frequencies. According to this, we consider electronic and positronic polarizations of the medium that
leads to the existence of two different mechanisms of frequency doubling. To describe coherent optical processes in electric dipole approximation we developed the generalized Dicke model for the system of N two-level atoms with possible quantum transitions having
ΔM=±1,±2, where M is population half-difference of resonant atomic levels. Formula for the intensity of quantum transitions with ΔM=±2 is derived for this
model.
Citation:
E. L. Antipin, O. N. Gadomsky, “Generalized Dicke model: transitions ΔM=±2”, TMF, 106:1 (1996), 145–159; Theoret. and Math. Phys., 106:1 (1996), 118–130
This publication is cited in the following 5 articles:
O. N. Gadomsky, D. O. Musich, “Atomic Nanostructured Systems with Negative Extinction”, Russ Phys J, 65:3 (2022), 454
JETP Letters, 82:2 (2005), 59–64
Gadomskii, ON, “Dynamics of moving interacting atoms in a laser radiation field and optical size resonances”, Journal of Experimental and Theoretical Physics, 100:2 (2005), 229
Yukalov, VI, “Coherent optics and localized light”, Optics and Spectroscopy, 87:4 (1999), 550
Gadomskii, ON, “Polarization fields in the positronium atom undergoing emission or absorption of optical photons”, Journal of Experimental and Theoretical Physics, 86:2 (1998), 259