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Song He

Portrait de Song He
Phd: Peking University 2009

Areas of Research:
Phone: x7632

Research Interests

I am interested in Quantum Field Theory, String Theory and Quantum Gravity, especially in mathematical and physical aspects of scattering amplitudes in these theories. Recently I have been working on the all-loop planar S-matrix of maximally supersymmetric Yang-Mills theory, and reformulations of scattering amplitudes for massless particles in general Quantum Field Theories.

Positions Held

  • 2012-2014 Perimeter Institute for Theoretical Physics & Institute for Advanced Study, Postoctoral Researcher
  • 2009-2012 Max-Planck Institute for Gravitational Physics, Postdoctoral Researcher

Recent Publications

  • Simon Caron-Huot, Song He, "Three-loop octagons and n-gons in maximally supersymmetric Yang-Mills theory",JHEP08 (2013) 101, arXiv: 1305.2781 [hep-th]
  • Bo Feng, Song He, "Graphs, determinants and gravity amplitudes", JHEP 1210 (2012) 121, arXiv: 1207.3220 [hep-th]
  • Niklas Beisert, Song He, Burkhard U.W. Schwab, Cristian Vergu, "Null Polygonal Wilson Loops in Full N=4 Superspace", J.Phys. A45 (2012) 265402, arXiv: 1203.1443 [hep-th].
  • Till Bargheer, Song He, Tristan McLoughlin, "New Relations for Three-Dimensional Supersymmetric Scattering Amplitudes", Phys.Rev.Lett. 108 (2012) 231601 , arXiv: 1203.0562 [hep-th].
  • Simon Caron-Huot, Song He, "Jumpstarting the All-Loop S-Matrix of Planar N=4 Super Yang-Mills", JHEP 1207 (2012) 174, arXiv: 1112.1060 [hep-th].
  • Scattering of Massless Particles in Arbitrary Dimension, Freddy Cachazo, Song He, Ellis Ye Yuan, e-Print: arXiv: 1307.2199 [hep-th].
  • Scattering in Three Dimensions from Rational Maps, Freddy Cachazo, Song He, Ellis Ye Yuan, e-Print: arXiv: 1306.2962 [hep-th].
  • Scattering Equations and KLT Orthogonality, Freddy Cachazo, Song He, Ellis Ye Yuan, e-Print: arXiv: 1306.6575 [hep-th].
  • A Link Representation for Gravity Amplitudes, Song He, e-Print: arXiv: 1207.4064 [hep-th].


  • Three-loop Octagons and n-gons in N=4 Super Yang-Mills, Humboldt University of Berlin
  • Gravitational Scattering Amplitudes, University of Michigan, Ann Arbor
  • Yangian Symmetry of Scattering Amplitudes in N=4 Super Yang-Mills, IGST 2012, ETH Zurich
  • The All-loop S-matrix in Planar N=4 SYM, University of Oxford
  • Jumpstarting the All-loop S-matrix of Planar N=4 SYM, Queen-Mary, London
  • Towards the All-loop S-matrix of Planar N=4 Super Yang-Mills, Amplitudes 2012, DESY, Hamburg
  • The S-matrix of N=4 SYM from Yangian Symmetry, CERN, Geneva
  • The Yangian Symmetry and S-matrix of N=4 SYM, CEA Saclay
  • Scattering of Massless Paricles in Arbitrary Dimension, PI String Group Meeting
  • Three Dimensional Supersymmetric Scattering Amplitudes, PI String Group Meeting