论文标题
Bose-Fermi取消Cosmological Coleman-Weinberg电位
Bose-Fermi Cancellation of Cosmological Coleman-Weinberg Potentials
论文作者
论文摘要
当正常物质耦合到充气量时，宇宙学Coleman-Weinberg电位会诱导。长期以来，众所周知，骨气场的校正是正的，而费米金场的校正为阴性。在平面空间中，两者都采用$ \pmφ^4 \ ln（φ）$的形式，并且可以通过适当选择耦合常数来取消它们。在不断扩展的宇宙中，尽管它们的较大野外限制确实如此，但骨髓和费米子的结果不再采用相同的形式。我们选择耦合常数，以使较大的场限制取消，然后遵循随着通货膨胀进展而导致的偏差。尽管结果并不令人满意，我们讨论如何与各种保形耦合添加标量可能解决问题。
Cosmological Coleman-Weinberg potentials are induced when normal matter is coupled to the inflaton. It has long been known that the corrections from bosonic fields are positive whereas those from fermionic fields are negative. In flat space both take the form $\pm φ^4 \ln(φ)$, and they can be made to cancel by appropriately choosing the coupling constants. In an expanding universe the bosonic and fermionic results no longer take the same form, although their large field limits do. We choose the coupling constants so that the large field limits cancel, and then follow the deviations which result as inflation progresses. Although the result is not satisfactory we discuss how adding scalars with various conformal couplings likely solves the problem.
