When the Large Hadron Collider resumes operations in 2021, several experiments will directly measure the motion of antihydrogen in free fall for the first time. Our current understanding of the universe is not yet fully prepared for the possibility that antimatter has negative gravitational mass. This paper proposes a model of cosmology, where the state of high energy density of the big bang is created by the collapse of an antineutrino star that has exceeded its Chandrasekhar limit. To allow the first neutrino stars and antineutrino stars to form naturally from an initial quantum vacuum state, it helps to assume that antimatter has negative gravitational mass. This assumption may also be helpful to identify dark energy. The degenerate remnant of an antineutrino star can today have an average mass density that is similar to the dark energy density of the ΛCDM model. When in hydrostatic equilibrium, this antineutrino star remnant can emit isothermal cosmic microwave background radiation and accelerate matter radially. This model and the ΛCDM model are in similar quantitative agreement with supernova distance measurements. Therefore, this model is useful as a purely academic exercise and as preparation for possible future discoveries.

中文翻译：

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费米退化暗能量的反中微子恒星模型

当大型强子对撞机于2021年恢复运行时，一些实验将首次直接测量自由落体中抗氢的运动。对于反物质具有负引力质量的可能性，我们目前对宇宙的理解还没有完全做好准备。本文提出了一个宇宙学模型，其中大爆炸的高能量密度状态是由超过Chandrasekhar极限的反中微子恒星的坍塌造成的。为了使第一个中微子恒星和反中微子恒星从初始量子真空状态自然形成，它有助于假定反物质具有负重力质量。该假设也可能有助于识别暗能量。今天，抗中微子星的简并残余物可以具有与ΛCDM模型的暗能量密度相似的平均质量密度。当处于静水平衡状态时，该抗中微子恒星残留物会发出等温宇宙微波本底辐射并径向加速物质。该模型和ΛCDM模型与超新星距离测量在定量上相似。因此，该模型可用作纯粹的学术活动，并为将来可能的发现做准备。