Fermi point in graphene as a monopole in momentum space

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Abstract

We consider the effective field theory of a 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.

Original languageEnglish
Pages (from-to)152-159
Number of pages8
JournalJETP Letters
Volume95
Issue number3
DOIs
StatePublished - Apr 2012
Externally publishedYes

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