AI 中文总结
研究在合成光子-声子晶格中实现集体相干完美吸收，利用腔-库介导相互作用使CPA进入高协同 regime，实现与机械振荡器基态冷却共存，拓宽吸收线形并获奇异群延迟响应，确定集体干涉是量子兼容完美吸收和长寿命量子存储的途径。
AI 中文摘要
相干完美吸收（CPA）已成为控制经典和量子光的有力范例，并在广泛的物理平台上得到了证明。光机械中实现的CPA依赖于输入场与机械散射场之间的干涉，但本质上局限于弱协同 regime，导致吸收带宽窄且机械模式保持热占据状态。在此，我们通过实验证明了合成光子-声子晶格中集体干涉诱导的CPA。通过利用弗洛凯晶格位点之间的腔-库介导相互作用，集体干涉将CPA条件深入到高协同 regime。这使得CPA能够与机械振荡器的基态冷却共存，同时具有加宽的非洛伦兹吸收线形和奇异的群延迟响应。我们的结果确定集体干涉是实现量子兼容完美吸收和长寿命量子存储的途径。
英文摘要
Coherent perfect absorption (CPA) has emerged as a powerful paradigm for controlling classical and quantum light, and has been demonstrated across a broad range of physical platforms. CPA realized in optomechanics relies on interference between the input field and the mechanically scattered field, but is intrinsically confined to the weak-cooperativity regime, resulting in a narrow absorption bandwidth and the mechanical mode remains thermally occupied. Here, we experimentally demonstrate collective interference-induced CPA in a synthetic photon--phonon lattice. By harnessing cavity-reservoir-mediated interactions among Floquet lattice sites, collective interference shifts the CPA condition deep into the high-cooperativity regime. This enables CPA to coexist with ground-state cooling of the mechanical oscillator, together with a broadened non-Lorentzian absorption lineshape and a singular group-delay response. Our results identify collective interference as a route to quantum-compatible perfect absorption and long-lived quantum storage.
Comments7 pages, 4 figures
