论文标题
有限的量子重力振幅 - 无附加条件
Finite Quantum Gravity Amplitudes -- no strings attached
论文作者
论文摘要
我们根据洛伦兹量子有效作用的参数化研究标量场的重力介导的散射。我们证明，旋转零的无限塔和在假想平方动量处的旋转两极的相互作用导致散射幅度与单位性界限，因果关系，因果关系和跨pland-planckian能量的规模不含。我们的构造避免了引入非本地性或在字符串理论中具有特征性的大型高自旋粒子。
We study the gravity-mediated scattering of scalar fields based on a parameterisation of the Lorentzian quantum effective action. We demonstrate that the interplay of infinite towers of spin zero and spin two poles at imaginary squared momentum leads to scattering amplitudes that are compatible with unitarity bounds, causal, and scale-free at trans-Planckian energy. Our construction avoids introducing non-localities or the massive higher-spin particles that are characteristic in string theory.
