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Effect of the bichromatic electromagnetic field on the random molecular aggregate or the quantum spin chain

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Zvyagin,  A. A.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Zvyagin, A. A., & Ropakova, I. Y. (2020). Effect of the bichromatic electromagnetic field on the random molecular aggregate or the quantum spin chain. Low Temperature Physics, 46(7), 677-682. doi:10.1063/10.0001363.


Cite as: http://hdl.handle.net/21.11116/0000-0007-8692-C
Abstract
The linear response of the molecular aggregate chain with the random distribution of the strength of the neighboring intermolecular interactions to the bichromatic electromagnetic field has been calculated. The presence of the linearly polarized field produces additional resonance absorption at the combined frequencies of the circularly polarized and linear polarized field. The strength of the absorption oscillates with the amplitude and the frequency of the linearly polarized electromagnetic field. Additional resonance absorption is weaker than the main absorption at the frequency of the circularly polarized field. Similar behavior has been predicted for the interaction of the bichromatic magnetic field with the quantum spin-1/2 chain with the random distribution of the exchange constants for nearest neighbor spins.