Polarization rotation for light propagating non-parallel to a magnetic field in QED vacuum and in a dilute electron gas
| dc.creator | Rojas, H. Perez | |
| dc.creator | Querts, E. Rodriguez | |
| dc.date | 2007-08-16 | |
| dc.date | 2008-05-02 | |
| dc.date.accessioned | 2026-07-07T09:36:18Z | |
| dc.date.available | 2026-07-07T09:36:18Z | |
| dc.description | The rotation of the polarization vector for light propagating perpendicular to an external constant external magnetic field $B$, is calculated in quantum vacuum, where it leads to different photon eigenmodes of the magnetized photon self-energy tensor for polarizations along and orthogonal to $B$ (Cotton-Mouton effect in QED vacuum). Its analogies and differences with Faraday effect are discussed and both phenomena are calculated for a relativistic electron gas at low densities, by starting from the low energy limit of the photon self-energy eigenvalues in presence of $B$. In the Cotton-Mouton case the polarization vector describes an ellipse whose axes vary periodically from zero to a maximum value. By assuming an effective electron density of order $10^3$ cm$^{-3}$ the quantum relativistic eigenvalues lead to a rotation of the polarization plane compatible with some of the limit values reported by PVLAS experiments. Other consequences, which are interesting for astrophysics, are also discussed. | |
| dc.description | changed content | |
| dc.identifier | https://arxiv.org/abs/0708.2215 | |
| dc.identifier | http://arxiv.org/abs/0708.2215 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/160074 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Polarization rotation for light propagating non-parallel to a magnetic field in QED vacuum and in a dilute electron gas | |
| dc.type | text |