3D massive Dirac fermions with chemical potential in external magnetic field: Current-current correlation function

Abstract

The response of fermionic system to external gauge fields in presence of non-quantized magnetic field is determined by current-current correlation function ${\Pi }_{\mu \nu }(\mathbf{B})$. We study $2D$ dimensional Dirac electron system and calculate current-current correlation function in a presence of magnetic field $B$, chemical potential $\eta$ and gap $m$.

8 pages, 1 figure

References in corpus (4)

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• f-Sum Rule and Unconventional Spectral Weight Transfer in Graphene
• Quantum transport of Dirac electrons in graphene in the presence of a spatially modulated magnetic field
• Polarization operator in the 2+1 dimensional quantum electrodynamics with a nonzero fermion density in a constant uniform magnetic field