Allowing for a nonvanishing spin tensor for cold dark matter (${\omega }_{\mathrm{DM}}=0$) has the consequence of giving rise to an effective $\mathrm{FLRW}$ dynamics with a small negative barotropic constant for an effective dark matter density ($-1∕3<{\omega }_{\mathrm{eff}}\le 0$). This turns out to solve the Hubble parameter tension in a straightforward way.

中文翻译：

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暗物质的自旋张量和哈勃参数张力

允许冷暗物质的旋转张量不消失（${\omega }_{\mathrm{DM}}=0$）具有产生有效 $\mathrm{FLRW}$ 有效暗物质密度的负正压常数小的动力学（$-\mathrm{1个}∕3<{\omega }_{\mathrm{效}}\le 0$）。事实证明，该方法可以直接解决哈勃参数紧张问题。