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CONDENSED MATTER

Fermi point in graphene as a monopole in momentum space

M. A. Zubkov

Institute for Theoretical and Experimental Physics (Russian Federation State Scientific Center), Moscow

Abstract: We consider the effective field theory of graphene monolayer with the Coulomb interaction between fermions taken into account. The gauge field in momentum space is introduced. The position of the Fermi point coincides with the position of the corresponding monopole. The procedure of extracting such monopoles during lattice simulations is suggested.

Received: 19.12.2011

Language: English

 English version: Journal of Experimental and Theoretical Physics Letters, 2012, 95:3, 152–159

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