Vacuum Energy Densities and Multiplicative Anomalies in a Free Bose Gas
| dc.creator | Evans, T. S. | |
| dc.date | 2001-04-14 | |
| dc.date.accessioned | 2026-07-07T04:11:34Z | |
| dc.date.available | 2026-07-07T04:11:34Z | |
| dc.description | The vacuum energy density or free energy of a free charged Bose gas at non-zero densities is studied in the context of the debate about Multiplicative Anomalies. Some zeta-function regularised calculations of the free energy in the literature are reexamined, clarified and extended. A range of apparently distinct answers can obtained. Equivalent dimensional regularisation results are also presented for comparison. I conclude that operator ordering and normal ordering are not responsible for these differences. Rather it is an undesirable but unavoidable property of zeta-function regularisation which leads to these different results, making it a bad scheme in general. By comparison I show how dimensional regularisation calculations give a consistent result without any complications, making this a good scheme in this context. | |
| dc.description | 34 pages, no figures, LaTeX2e | |
| dc.identifier | https://arxiv.org/abs/hep-th/0104128 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0104128 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/50635 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Vacuum Energy Densities and Multiplicative Anomalies in a Free Bose Gas | |
| dc.type | text |