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Phase transition in three-dimensional quantum electrodynamics at T ≠ 0

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Russian Physics Journal Aims and scope

Dynamic mass generation in 3D quantum electrodynamics (QED3) is considered at T ≠ 0. To solve the Schwinger–Dyson equation for the Matsubara electron Green’s function, the ladder approximation is used and the corresponding photonic function is taken in the Landau gauge. In this case, the instant approximation is used for the photonic function. It is established that the process of dynamical mass generation in QED3 at T ≠ 0 is accompanied by a phase transition. Formal analogy of transitions in the coupling constant is revealed at T ≠ 0 in QED3, at T = 0 in QED4, and in graphene theory. Critical values of the coupling constant and temperature, calculated numerically based on an approximate analytical solution of the Schwinger–Dyson equation are of the same orders of magnitude.

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Authors and Affiliations

  1. Ukraine National Mining University, Dnepropetrovsk, Ukraine

    M. Sh. Pevzner & D. V. Kholod

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  1. M. Sh. Pevzner
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  2. D. V. Kholod
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Correspondence to M. Sh. Pevzner.

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 71–75, February, 2010.

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Pevzner, M.S., Kholod, D.V. Phase transition in three-dimensional quantum electrodynamics at T ≠ 0. Russ Phys J 53, 182–187 (2010). https://doi.org/10.1007/s11182-010-9403-4

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  • DOI: https://doi.org/10.1007/s11182-010-9403-4

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