{ "id": "hep-th/9509046", "version": "v3", "published": "1995-09-07T10:14:49.000Z", "updated": "1995-10-23T13:12:59.000Z", "title": "Two-loop QED with External Magnetic Field", "authors": [ "Pradip K Sahu" ], "comment": "12 pages (LaTex) and 5 postscript figures added. Replaced to remove blocks of text accidentally copied verbatim from papers by V. Zeitlin (hep-ph/9412204 and hep-ph/9507404) and some typos are corrected", "categories": [ "hep-th" ], "abstract": "In two - loop effective Lagrangian, the low - temperature expansion of the $QED_{3+1}$ with a constant magnetic field and a finite chemical potential is performed. We then calculate the total fermion density, some components of polarization operator and de Hass -van Alphen oscillations. We find that there is a significant contribution from two-loop expansion to magnetization and fermion density for higher values of chemical potentials.", "revisions": [ { "version": "v3", "updated": "1995-10-23T13:12:59.000Z" } ], "analyses": { "keywords": [ "external magnetic field", "total fermion density", "van alphen oscillations", "constant magnetic field" ], "note": { "typesetting": "LaTeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "inspire": 399256, "adsabs": "1995hep.th....9046S" } } }