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- W2130263887 abstract "steady state regime of the polymer driven by a cw or nanosecond laser. This should be easier to address experimentally, yet it contains rich and unexplored features related to light-matter interaction in strong coupling. The coherent many-body ground state of the chain in the presence of the light field can be parametrized as a BCS-like wavefunction that depends on variational parameters. By a functional minimization of the ground state energy with respect to these variational parameters, we obtain a non-homogeneous nonlinear equation that describes the distribution of the optical polarization along the chain. The total polarization in the chain is not fixed, like in the case of a single excitonic polaron [17, 18], but is determined by the intensity and frequency of the laser field. The nonlinear equation is solved numerically to calculate the distribution of the polarization in the chain and therefore the forces acting on the ions. The model consists of a molecular crystal chain coupled to a single mode of the electromagnetic field. Molecularlike states localized at the unit cells of the chain (Frenkel excitons) can propagate along the chain by hopping. The ground state of the organic semiconductor in the presence of the electromagnetic field can be investigated by adding the effect of the exciton-light coupling HXL to the SSH [19] Hamiltonian as" @default.
- W2130263887 created "2016-06-24" @default.
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- W2130263887 date "2005-03-23" @default.
- W2130263887 modified "2023-10-16" @default.
- W2130263887 title "Optical Coherent Control of Lattice Deformations in Organic Semiconductors" @default.
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- W2130263887 hasPublicationYear "2005" @default.
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