Abstract
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.
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Contribution to the Topical Issue “Excitonic Processes in Condensed Matter, Nanostructured and Molecular Materials”, edited by Maria Antonietta Loi, Jasper Knoester and Paul H. M. van Loosdrecht.
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Inoue, Ji. Possible condensation of Frenkel exciton polaritons in an organic nanofiber. Eur. Phys. J. B 86, 70 (2013). https://doi.org/10.1140/epjb/e2012-30619-7
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DOI: https://doi.org/10.1140/epjb/e2012-30619-7