发表机构
The Institute of Mathematical Sciences; Homi Bhabha National Institute（马哈拉施特拉邦数学科学研究所; 霍米·巴巴国立研究所）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究利用威滕立方开弦场论，将闭弦激发映射为规范不变算符，重现闭弦S矩阵的全阶亏格展开，证明量子引力从开弦快子真空动态涌现，为平直空间量子引力提供了非微扰框架。
AI 中文摘要
我们利用不稳定D-膜上的威滕立方开弦场论（OSFT），给出了渐近平直时空量子引力的非微扰表述。鉴于闭弦谱的无质量自旋2部分内禀地编码了量子引力的自由度，我们通过将在壳闭弦激发直接映射为OSFT中的规范不变算符，建立了这一联系，实现了AdS/CFT对应关系的平直空间类比。通过在快子真空附近微扰地计算这些算符的OSFT关联函数，我们系统地重现了相关态的闭弦S矩阵的全阶亏格展开。这表明闭弦理论——进而量子引力——是从开弦快子真空动态涌现的，确立了威滕OSFT作为完全可计算的平直空间量子引力非微扰框架的地位。
英文摘要
We present a non-perturbative formulation of quantum gravity in asymptotically flat spacetimes using Witten's cubic open string field theory (OSFT) on unstable D-branes. Given that the massless spin-2 sector of the closed string spectrum inherently encodes the degrees of freedom of quantum gravity, we establish this connection by mapping on-shell closed string excitations directly to gauge-invariant operators in OSFT, realizing a concrete flat-space analogue of the AdS/CFT correspondence. By evaluating the OSFT correlation functions of these operators perturbatively around the tachyon vacuum, we systematically reproduce the all-orders genus expansion of the closed string S-matrix for the associated states. This demonstrates that closed string theory-and thus quantum gravity-emerges dynamically from the open string tachyon vacuum, establishing Witten's OSFT as a fully calculable, non-perturbative framework for flat-space quantum gravity.
Comments33 Pages, 18 figures
