Possible condensation of Frenkel exciton polaritons in an organic nanofiber
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- Inoue, J. Eur. Phys. J. B (2013) 86: 70. doi:10.1140/epjb/e2012-30619-7
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We theoretically investigate a phase transition of Frenkel exciton polaritons in an organic nanofiber. Assuming a phenomenological Hamiltonian, we derive a mean field equation for the condensation after finding an effective action for the phenomenon using the functional integral method and stationary phase analysis. From a solution of the mean field equation, we construct a phase diagram for the condensation and highlight features that distinguish J- and H-aggregates. We also detail a connection with the superradiant phase transition, which has been studied using the Dicke model.