PIRSA:13090049 Scientific Series Quantum Fields and Strings

DOI10.48660/13090049

Series: Quantum Fields and Strings

Lipstein, A. (2013). From dlogs to dilogs. Perimeter Institute. https://pirsa.org/13090049

Lipstein, Arthur. From dlogs to dilogs. Perimeter Institute, Sep. 10, 2013, https://pirsa.org/13090049 

@misc{ pirsa_PIRSA:13090049,
  doi = {10.48660/13090049},
  url = {https://pirsa.org/13090049},
  author = {Lipstein, Arthur},
  keywords = {Quantum Fields and Strings},
  language = {en},
  title = {From dlogs to dilogs},
  publisher = {Perimeter Institute},
  year = {2013},
  month = {sep},
  note = {PIRSA:13090049 see, \url{https://pirsa.org}}
}

Abstract

In this talk, I will describe a new form of hidden simplicity in the planar scattering amplitudes of N=4 super-Yang-Mills theory, notably that the loop integrands can be expressed in dlog form. I will explain how this form arises geometrically from computing the scattering amplitudes using a holomorphic Wilson loop in twistor space. I will also describe a systematic method for evaluating such integrals and use it to obtain a new formula for the 1-loop MHV amplitude. These techniques can be extended to higher loop amplitudes and may lead to a simple and efficient method for computing scattering amplitudes more generally.

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