arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.01945hep-thgr-qc
收藏

Minkowski非局部理论的么正性

Unitarity of Minkowski non-local theories made explicit

Alexey S. Koshelev, Anna Tokareva

摘要:

在这项工作中,我们明确表明,微扰么正性的解析无穷导数(AID)标量场理论可以实现使用修改后的处方计算散射振幅。新处方的关键是在闵可夫斯基外动量的欧几里德签名中得到的结果的解析延拓。我们集中阐述了一个例子的非本地$ϕ^4$模型的各种无穷导数算子。讨论了非局域理论中振幅的一般UV性质。

英文摘要:

In this work we explicitly show that the perturbative unitarity of analytic infinite derivative (AID) scalar field theories can be achieved using a modified prescription for computing scattering amplitudes. The crux of the new prescription is the analytic continuation of a result obtained in the Euclidean signature to the Minkowski external momenta. We intensively elaborate an example of a non-local $ϕ^4$ model for various infinite derivative operators. General UV properties of amplitudes in non-local theories are discussed.

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。

↑