Polarization rotation and Casimir effect in suspended graphene films

TL;DR

This paper investigates how Dirac fermions in suspended graphene influence optical polarization and Casimir forces, predicting effects detectable with current experimental techniques.

Contribution

It introduces a field-theoretical model to analyze polarization rotation and Casimir interactions in suspended graphene, highlighting their measurable magnitudes.

Findings

Polarization rotation of light in graphene predicted

Casimir force between graphene and conductors calculated

Effects are within current experimental detection capabilities

Abstract

The low-energy quasi-excitations in graphene are known to be described as Dirac fermions in 2+1 dimensions. Adopting field-theoretical approach we investigate the interaction of these quasi-particles with 3+1 dimensional electromagnetic field focusing on the optical properties of suspended graphene layers and their Casimir interaction with ideal conductor. The magnitude of predicted effects (the rotation of polarization of light and the Casimir force) appears to be well within modern experimental capabilities.