论文标题
手性对称性和宇宙常数
Chiral Symmetry and the Cosmological Constant
论文作者
论文摘要
在这项工作中，我们提供了几乎消失的宇宙常数和手性对称性之间的联系。这是通过对拓扑领域理论结合的一般相对论的修改，即BF理论通过引入BF理论量规组收取的费米子来实现的。我们发现，宇宙常数为fermions提供了手性异常，为观察到的宇宙学常数的较小性提供了“技术自然”的解释。应用于早期的宇宙，我们表明，通货膨胀期间的费米子的产量可以以超重的深色重子的形式提供当今宇宙中的所有暗物质。
In this work we provide a link between a nearly vanishing cosmological constant and chiral symmetry. This is accomplished with a modification of General Relativity coupled to a topological field theory, namely BF theory by introducing fermions charged under the BF theory gauge group. We find that the cosmological constant sources a chiral anomaly for the fermions, providing a `technical naturalness' explanation for the smallness of the observed cosmological constant. Applied to the early universe, we show that production of fermions during inflation can provide all the dark matter in the universe today, in the form of superheavy dark baryons.
