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Atom Zh. Muradyan

Publications and source records attributed to Atom Zh. Muradyan.

4 recordsLinked to original sources
arXiv2019

Non-uniqueness of second quantization of electromagnetic field: Stationary States of Jaynes-Cummings model in free space

On the example of stationary states of a system consisting of an atom and a quantized electromagnetic field (the Jaynes-Cummings model in free space), it is shown that the physical characteristics of the system (as the energy and the probability distribution of finding the center of mass of the atom) explicitly depend on the choice of the basis of quantization of the electromagnetic field. Therefore, the secondary quantization procedure is not independent of the choice of the quantization basis in the interaction of the field with the material medium.

quant-ph↗
arXiv2011

Quantum superposition principle and generation of ultrashort optical pulses

We discuss the propagation of laser radiation through a medium of quantum prepared Λ-type atoms in order to enhance the insight into the physics of QS-PT generator suggested in Phys. Rev. A 80, 035801 (2009). We obtain analytical results which give a qualitatively corerct description of the outcoming series of ultrashort optical pulses and show that for the case of alkali vapor medium QS-PT generation may be implemented under ordinary experimental conditions.

quant-ph↗
arXiv2008

Nondegenerate parametric down conversion in coherently prepared two-level atomic gas

We describe parametric down conversion process in a two-level atomic gas, where the atoms are in a superposition state of relevant energy levels. This superposition results in splitting of the phase matching condition into three different conditions. Another, more important, peculiarity of the system under discussion is the nonsaturability of amplification coefficients with increasing pump wave intensity, under "sideband" generation conditions.

quant-ph↗