论文标题
量规理论中真空气泡碰撞的引力波
Gravitational waves from colliding vacuum bubbles in gauge theories
论文作者
论文摘要
我们研究了仪表理论中强冷的宇宙学相变的引力波（GWS）的产生。我们从两泡晶格模拟GW源的缩放中提取，并将其在薄壁极限的多泡模拟中使用，以估计所得的GW频谱。我们发现，在量规场的存在下，GW源在碰撞后用气泡半径为$ \ propto r^{ - 3} $。这导致了GW频谱，遵循$ω_ {\ rm gw} \ proptoω^{2.3} $在低频下，$ω_ {\ rm gw} \ rm gw} \ proptoω^{ - 2.4} $在高频下，在高频上进行了巨大的偏差，标志着流行的Envelope opuropuciation opuropation。
We study production of gravitational waves (GWs) in strongly supercooled cosmological phase transitions in gauge theories. We extract from two-bubble lattice simulations the scaling of the GW source, and use it in many-bubble simulations in the thin-wall limit to estimate the resulting GW spectrum. We find that in presence of the gauge field the GW source decays with bubble radius as $\propto R^{-3}$ after collisions. This leads to a GW spectrum that follows $Ω_{\rm GW} \propto ω^{2.3}$ at low frequencies and $Ω_{\rm GW} \propto ω^{-2.4}$ at high frequencies, marking a significant deviation from the popular envelope approximation.
