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Collective excitations in optical spectra of nanosize exciton and electron-positron droplets

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Abstract

We study the optical properties of nanosize two-component Fermi systems. The photoabsorption spectra in Fermi systems containing not more than 102 pairs of oppositely charged particles are calculated. The main focus is on the role of collective plasmon excitations. The dependences of the position of the plasmon resonance on the number of particles and the ratio of their masses in the system are investigated.

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Authors and Affiliations

  1. St. Petersburg State Technical University, St. Petersburg, 195251, Russia

    L. G. Gerchikov & A. N. Ipatov

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  1. L. G. Gerchikov
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  2. A. N. Ipatov
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Correspondence to L. G. Gerchikov.

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Original Russian Text © L.G. Gerchikov, A.N. Ipatov, 2014, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2014, Vol. 146, No. 5, pp. 1014–1025.

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Gerchikov, L.G., Ipatov, A.N. Collective excitations in optical spectra of nanosize exciton and electron-positron droplets. J. Exp. Theor. Phys. 119, 891–901 (2014). https://doi.org/10.1134/S1063776114110156

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