arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2009.03003gr-qchep-phhep-th
收藏

超流暗物质的三个问题及其解决

Three problems of superfluid dark matter and their solution

Tobias Mistele

摘要:

在超流暗物质(SFDM)中,声子场扮演着双重角色:它携带超流的能量密度,并介导MOND类声子力。我们表明,这两个角色是在紧张的星系尺度上彼此:MOND类声子力是在紧张的超流体平衡和显着的超流体能量密度。为了避免这些紧张局势,我们提出了一个模型,这两个角色在两个不同的领域之间分裂。这也使我们能够以比标准SFDM更优雅的方式解决稳定性问题。我们认为,对星系超流核心大小的标准估计需要重新审视。

英文摘要:

In superfluid dark matter (SFDM), the phonon field plays a double role: It carries the superfluid's energy density and it mediates the MOND-like phonon force. We show that these two roles are in tension with each other on galactic scales: A MOND-like phonon force is in tension with a superfluid in equilibrium and with a significant superfluid energy density. To avoid these tensions, we propose a model where the two roles are split between two different fields. This also allows us to solve a stability problem in a more elegant way than standard SFDM. We argue that the standard estimates for the size of a galaxy's superfluid core need to be revisited.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑