Abstract
It is shown that the indirect interaction of pseudospins via radiation field in a two-level optical system contains pseudospin energy components of the Ising exchange-interaction type. The conditions under which this interaction can show up in optical spectra are discussed.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 74, No. 5, 2001, pp. 283–286.
Original Russian Text Copyright © 2001 by Kessel, Donskaya.