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arXiv · hep-th/9303113

Anomaly-Induced Magnetic Screening in 2+1 dimensional QED at Finite Density

Stefano Forte
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Abstract

We show that in 2+1 dimensional Quantum Electrodynamics an external magnetic field applied to a finite density of massless fermions is screened, due to a $2+1$-dimensional realization of the underlying $2$-dimensional axial anomaly of the space components of the electric current. This is shown to imply screening of the magnetic field, i.e., the Meissner effect. We discuss the physical implications of this result.

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Stefano Forte. 1993-05-20. Anomaly-Induced Magnetic Screening in 2+1 dimensional QED at Finite Density. https://doi.org/10.1103/physrevlett.71.1303

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