唯黎曼引力作用量的爱因斯坦方程
Einstein Equations from Riemann-only Gravitational Actions
摘要：
本文表明，完全基于黎曼曲率张量的纯仿射作用量导出引力的爱因斯坦场方程。所涉及的物质和辐射足够普遍，对物质动力学或真空结构没有任何限制。这种与广义相对论的动力学等价也可以通过超态破缺来实现。
英文摘要：
Here show that, pure affine actions based solely on the Riemann curvature tensor lead to Einstein field equations for gravitation. The matter and radiation involved are general enough to impose no restrictions on material dynamics or vacuum structure. This dynamical equivalence to General Relativity can be realized via also diffeomorphism breaking.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
