标题： 引力波直接探测的限制 显示英文标题

标题： Limits on Direct Detection of Gravitational Waves

摘要： 我们计算了由原初引力波谱在地基和空间引力波探测器（如LIGO）上引起的能量密度和应变，这些探测器受到COBE对微波背景各向异性探测的约束。 对于谱在膨胀期间形成的这种情况，我们发现了新的、更严格的应变上限，使得探测变得不太可能。然而，探测器可能有助于发现（或排除）奇异的、非膨胀性的源。 显示英文摘要

摘要： We compute energy density and strain induced by a primordial spectrum of gravitational waves on terrestrial- and space-based detectors (e.g., LIGO) as constrained by the COBE detection of microwave background anisotropy. For the case where the spectrum is created during inflation, we find new, stricter upper bounds on the induced strain, making detection unlikely. However, detectors might be useful for discovering (or ruling out) exotic, non-inflationary sources.