This new book presents and discusses current research developments in the study of theoretical physics. Topics discussed include dark energy as the source of the time-dependent Einstein cosmological constant; non-linear refractive index theory; quantum coherence and tunable transient behavior of a double-control four-level atomic vapor; laser prototyping of polymer-based nanoplasmonic components and radiative transitions of mesons in an independant-quark potential model. (Imprint: Nova Press)
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