矢量模糊暗物质、第五力和双脉冲星
Vector Fuzzy Dark Matter, Fifth Forces, and Binary Pulsars
摘要：
我们研究的长期影响，振荡的背景超轻（模糊）宇宙学矢量场的动力学的二元系统，这种影响出现时，该领域和二进制的共振。我们首先考虑场和系统之间的引力相互作用，并用振荡的背景标量场量化主要的差异。如果这样一个领域的能量密度是足够大的，如所需的，如果它应该是所有的暗物质，我们表明，长期的影响可能会产生潜在的可观察到的签名在高精度的到达时间测量的二进制双星。然后，我们分析了长期的影响时，出现的领域是直接耦合到机构的二进制。我们表明，这项研究是特别相关的模型，模糊暗物质介导重子力$B$（或$B-L$，与$L$轻子数），由于恒星的核子量存在于恒星。我们从当前数据中获得的约束条件已经与等效原理的实验室测试具有竞争力（甚至更具约束力）。
英文摘要：
We study the secular effects that an oscillating background ultralight (fuzzy) cosmological vector field has on the dynamics of binary systems; such effects appear when the field and the binary are in resonance. We first consider the gravitational interaction between the field and the systems, and quantify the main differences with an oscillating background scalar field. If the energy density of such a field is sufficiently large, as required if it is supposed to be all of the dark matter, we show that the secular effects could yield potentially observable signatures in high precision time of arrival measurements of binary pulsars. We then analyse the secular effects that arise when the field is directly coupled to the bodies in the binary. We show that this study is particularly relevant for models where fuzzy dark matter mediates a baryonic force $B$ (or $B-L$, with $L$ the lepton number), due to the stellar amount of nucleons present in the stars. The constraints we obtain from current data are already competitive with (or even more constraining than) laboratory tests of the equivalence principle.
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