| Autor: |
Gerd Leuchs, Margaret Hawton, Luis L. Sánchez-Soto |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Physics, Vol 2, Iss 1, Pp 14-21 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2624-8174 |
| DOI: |
10.3390/physics2010002 |
| Popis: |
We present a new perspective on the link between quantum electrodynamics (QED) and Maxwell’s equations. We demonstrate that the interpretation of the electric displacement vector D = ε 0 E , where E is the electric field vector and ε 0 is the permittivity of the vacuum, as vacuum polarization is consistent with QED. A free electromagnetic field polarizes the vacuum, but the polarization and magnetization currents cancel giving zero source current. The speed of light is a universal constant, while the fine structure constant, which couples the electromagnetic field to matter runs, as it should. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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