Jacob Bourjaily

Jacob Bourjaily

Jacob Lewis Bourjaily,
Student of Physics
and Mathematics

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contact information:

Jacob Bourjaily
Harvard Jefferson Laboratory
Department of Physics
Harvard University

email: bourjaily (at) fas.harvard.edu.edu

Jacob Bourjaily's Home Page



I am a theoretical physicist at Harvard University as a Junior Fellow in the Harvard Society of Fellows. I completed my PhD in 2011 at Princeton University under the supervision of Nima Arkani-Hamed at the Institute for Advanced Study.

The primary focus of my research involves the understanding of quantum field theory using "on-shell" methods; this involves many intricate connections to new areas of mathematics, including the geometry of particular configurations of planes—stratifications of Grassmannian manifolds.

I have also worked on string theory and particle physics phenomenology, with a particular interest in the local, geometric structures which can lead to physically interesting phenomenological models in M-theory and F-theory.


Princeton University
Ph.D. in Theoretical Physics, May 2011.
M.A. in Physics, January 2008.

University of Cambridge, Trinity College
M.A.St., Masters of Advanced Studies, Mathematics (CASM), June 2006.

University of Michigan, Ann Arbor
B.S. with Highest Honors in Physics, Mathematics, April 2005.

Recent Research Publications:

  • J. Bourjaily, S. Caron-Huot, and J. Trnka, Dual-Conformal Regularization of Infrared Loop Divergences and the Chiral Box Expansion, arXiv:1303.4734 [hep-th].
  • J. Bourjaily, Positroids, Plabic Graphs, and Scattering Amplitudes in Mathematica, arXiv:1212.6974 [hep-th].
  • N. Arkani-Hamed, J. Bourjaily, F. Cachazo, A. Goncharov, A. Postnikov, and J. Trnka, Scattering Amplitudes and the Positive Grassmannian, arXiv:1212.5605 [hep-th].
  • J. Bourjaily, A. Dire, A. Shaikh, M. Spradlin, and A. Volovich, The Soft-Collinear Bootstrap: N=4 Yang-Mills Amplitudes at Six and Seven Loops, arXiv:1112.6432 [hep-th].
  • N. Arkani-Hamed, J. Bourjaily, F. Cachazo, A. Hodges, and J. Trnka, A Note on Polytopes for Scattering Amplitudes, arXiv:1012.6030 [hep-th].
  • N. Arkani-Hamed, J. Bourjaily, F. Cachazo, and J. Trnka, Local Integrals for Planar Scattering Amplitudes, arXiv:1012.6032 [hep-th].
  • J. Bourjaily, Efficient Tree Amplitudes in N=4: Automatic BCFW Recursion in Mathematica, arXiv:1011.2447 [hep-ph].
  • J. Bourjaily J. Trnka, A. Volovich, and C. Wen, The Grassmannian and the Twistor String in N=4 SYM, arXiv:1006.1899 [hep-th].
  • N. Arkani-Hamed, J. Bourjaily, F. Cachazo, and J. Trnka, Unification of Residues and Grassmannian Dualities, arXiv:0912.4912 [hep-th].
  • N. Arkani-Hamed, J. Bourjaily, F. Cachazo, and J. Trnka, Local Spacetime Physics from the Grassmannian, arXiv: 0912.3249 [hep-th].
  • J. Bourjaily, Effective Field Theories for Local Models in F-Theory and M-Theory, arXiv:0905.014 [hep-th].
  • J. Bourjaily, Local Models in F-Theory and F-Theory with Three Generations, arXiv:0901.3785 [hep-th].
  • J. Bourjaily and S. Espahbodi, Geometrically Engineerable Chiral Matter in M-Theory, arXiv:0804.1132 [hep-th].
  • J. Bourjaily, Unfolding Geometric Unification in M-Theory, arXiv:0706.3364 [hep-th].
  • J. Bourjaily, Geometrically Engineering the Standard Model: Locally Unfolding Three Families out of E8, arXiv:0704.0445 [hep-th]. Phys. Rev. D76:045004.
  • J. Bourjaily, Multiple Unfoldings of Orbifold Singularities: Engineering Geometric Analogies to Unification, arXiv:0704.0444 [hep-th]. Phys. Rev. D79:046005.
  • J. Bourjaily, G. Kane, P. Kumar, and T. Wang, Outside the mSUGRA Box;
  • J. Bourjaily and G. Kane, What is the Cosmological Significance of a Discovery of Wimps at Colliders or in Direct Experiments? Submitted to Phys Rev D; hep-ph/0501262.
  • J. Bourjaily, Determining the Actual Local Density of Dark Matter Particles. Eur. Phys. J. C-D. Also to appear in the proceedings of ISSP 2004; astro-ph/0410470.
  • J. Bourjaily, Weighing the Dark Matter Halo. To appear in "IDM 2004: The 5th International Workshop on the Identification of Dark Matter," eds. N. Spooner and V. Kudryavtsev; astro-ph/0411409.

Honors and Awards:

Professional and Honorary Societies:

Mathematical delight

News and Updates:

Added a list of still outstanding banknotes featuring scientists, mathematicians and science-related material.

Recently updated my banknote collection, adding a fifth page.

website last updated:
24th March 2013