一颗白矮星能承载多少额外电荷？
广义相对论与量子宇宙学
2021-03-17 v2 太阳与恒星天体物理
摘要
一个物体能承载多少过剩电荷（“额外电荷”，surcharge）这一问题通常极难回答。本文表明，当该物体是一颗由质子和电子构成的“失败白矮星”（基态下的棕矮星）时，此问题易于回答：给定质子数，可以有多少个电子？令人惊讶的是，答案（形式为：最少 个，最多 个）与光速 和普朗克量子 无关，即便该星体由相对论量子力学稳定以抵抗坍缩时亦如此。
引用
@article{arxiv.2008.04501,
title = {How much electric surcharge fits on ... a white dwarf star?},
author = {Parker Hund and Michael K. -H. Kiessling},
journal= {arXiv preprint arXiv:2008.04501},
year = {2021}
}
备注
9 pages, 3 figures. This revision contains about 1/3 of v1, slightly expanded, and will appear in Am. J. Phys. It no longer contains the exactly solvable model. The remaining 2/3 of v1 with the exactly solvable model have been expanded significantly into a new paper in its own right, to be published separately