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Current–current correlation function in the presence of chemical potential and magnetic field

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Journal of Contemporary Physics (Armenian Academy of Sciences) Aims and scope

Abstract

A (2+1)-dimensional electronic system is considered, in which the relation between the Green functions and the conductivity is used. A current–current correlation function, Πμν(B), of the fermion system was obtained in the presence of nonquantized fermion magnetic field B, chemical potential η and gap m. Using this function one can obtain an expression for polarization operator calculated without the magnetic field. The result obtained can be applied for graphene.

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Authors and Affiliations

  1. Alikhanyan National Scientific Laboratory, Yerevan, Armenia

    E. A. Apresyan

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  1. E. A. Apresyan
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Correspondence to E. A. Apresyan.

Additional information

Original Russian Text © E.A. Apresyan, 2017, published in Izvestiya Natsional’noi Akademii Nauk Armenii, Fizika, 2017, Vol. 52, No. 2, pp. 145–150.

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Apresyan, E.A. Current–current correlation function in the presence of chemical potential and magnetic field. J. Contemp. Phys. 52, 105–109 (2017). https://doi.org/10.3103/S1068337217020037

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  • DOI: https://doi.org/10.3103/S1068337217020037

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