论文标题
关于希格斯不稳定的宇宙学稳定性
On the Cosmological Stability of the Higgs Instability
论文作者
论文摘要
标准模型希格斯电势在大型希格斯磁场值下变得不稳定，而其四分之一的耦合变为负。虽然我们当前的电动电动真空吸尘器的隧道寿命比宇宙的时代更长，但通货膨胀期间的量子波动可能会将希格（Higg）推向屏障上，从而形成可能对我们宇宙而言是致命的斑块。我们研究了此类区域的宇宙学演化，并发现至少在薄壁近似中，由于希格斯本身的反应，它们可能无害。标准模型希格斯不稳定性的存在可以提供一种新的机制，以结束通货膨胀，并通过希格斯气泡的崩溃而留下的黑洞蒸发来结束宇宙。因此，可以放松通货膨胀期间哈勃速率的结合。
The Standard Model Higgs potential becomes unstable at large Higgs field values where its quartic coupling becomes negative. While the tunneling lifetime of our current electroweak vacuum is comfortably longer than the age of the universe, quantum fluctuations during inflation might push the Higgs over the barrier, forming patches which might be lethal for our universe. We study the cosmological evolution of such regions and find that, at least in the thin wall approximation, they may be harmless as they collapse due to the backreaction of the Higgs itself. The presence of the Standard Model Higgs instability can provide a novel mechanism to end inflation and to reheat the universe through the evaporation of the black holes left over by the collapse of the Higgs bubbles. The bound on the Hubble rate during inflation may be therefore relaxed.
