My work is supported by the U.S. Department of Energy under grant DE-SC0009988 since 09/2015, and in addition, by Corning Glass Works Foundation Fellowship from 09/2015 to 08/2016, and by Carl P. Feinberg Founders’ Circle Membership from 09/2016 to 08/2017.

My work from 09/2012 to 08/2015 is supported by Perimeter Institute for Theoretical Physics and the University of Waterloo via Graduate Research Studentship, International Doctoral Student Award, Marie Curie Award, and Perimeter Institute PhD Award.

Detailed statistics about my past works can be found on **INSPIRE**.

1 | Simplicity in AdS Perturbative Dynamics, EYY, arXiv:1801.07283 |
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2 | One-Loop Integrals from Spherical Projections of Planes and Quadrics, N. Arkani-Hamed, EYY, arXiv:1712.09991 |

3 | Loops in the Bulk, EYY, arXiv:1710.01361 |

4 | Factorization of Chiral String Amplitudes, Y-t. Huang, W. Siegel, EYY, JHEP 1609 (2016) 101, arXiv:1603.02588 |

5 | One-Loop Corrections from Higher Dimensional Tree Amplitudes, F. Cachazo, S. He, EYY, JHEP 1608 (2016) 008, arXiv:1512.05001 |

6 | One-loop Scattering Equations and Amplitudes from Forward Limit, S. He, EYY, Phys.Rev. D92 (2015) 105004, arXiv:1508.06027 |

7 | New Double Soft Emission Theorems, F. Cachazo, S. He, EYY, Phys.Rev. D92 (2015) 065030, arXiv:1503.04816 |

8 | Scattering Equations and Matrices: From Einstein To Yang-Mills, DBI and NLSM, F. Cachazo, S. He, EYY, JHEP 1507 (2015) 149, arXiv:1412.3479 |

9 | Einstein-Yang-Mills Scattering Amplitudes From Scattering Equations, F. Cachazo, S. He, EYY, JHEP 1501 (2015) 121, arXiv:1409.8256 |

10 | Are Soft Theorems Renormalized?, F. Cachazo, EYY, arXiv:1405.3413 |

11 | α'-Expansion of Open String Disk Integrals via Mellin Transformations, EYY, Nucl.Phys. B891 (2014) 296-311, arXiv:1402.1066 |

12 | N-Point Tree-Level Scattering Amplitude in the New Berkovits' String, H. Gomez, EYY, JHEP 1404 (2014) 046, arXiv:1312.5485 |

13 | Scattering of Massless Particles: Scalars, Gluons and Gravitons, F. Cachazo, S. He, EYY, JHEP 1407 (2014) 033, arXiv:1309.0885 |

14 | Scattering of Massless Particles in Arbitrary Dimensions, F. Cachazo, S. He, EYY, Phys.Rev.Lett. 113 (2014) 17, 171601, arXiv:1307.2199 (see also Lance Dixon's article Physics 7, 107 (2014)) |

15 | Scattering Equations and Kawai-Lewellen-Tye Orthogonality, F. Cachazo, S. He, EYY, Phys.Rev. D90 (2014) 065001, arXiv:1306.6575 |

16 | Scattering in Three Dimensions from Rational Maps, F. Cachazo, S. He, EYY, JHEP 1310 (2013) 141, arXiv:1306.2962 |

17 | Virtual Color-Kinematics Duality: 6-pt 1-Loop MHV Amplitudes, EYY, JHEP 1305 (2013) 70, arXiv:1210.1816 |

* Conference/workshop talks or lectures.

22/06/2018* | Simplicity in AdS Perturbative DynamicsAmplitudes 2018 |
SLAC |

16/05/2018* | Scattering Equations & Soft TheoremsInfrared Physics: Asymptotic & BMS symmetry, soft theorems, memory, information paradox and all that |
International Solvay Institutes |

07-09/05/2018* | CHY: a Stringy View of Field-Theory Amplitudes [videos, notes](4.5hrs mini-course) |
ICTP-SAIFR |

20/04/2018 | Simplicity in AdS Perturbative Dynamics |
Institute for Advanced Study |

04/04/2018 | Simplicity in AdS Perturbative Dynamics |
Brown University |

04/04/2018 | Projective Geometry of Scattering Amplitudes |
Brown University |

06/03/2018 | Simplicity in AdS Perturbative Dynamics |
Niels Bohr International Academy |

01/03/2018 | Simplicity in AdS Perturbative Dynamics |
Mainz Institute for Theoretical Physics |

08/02/2018 | Perturbative S-matrix as a Geometric Entity [slides] |
John-Hopkins University |

29/01/2018 | Simplicity in AdS Perturbative Dynamics [slides] |
Texas A&M University |

12/12/2017* | Loops in the BulkQCD Meets Gravity |
University of California, Los Angeles |

03/11/2017 | Loops in the Bulk |
Zhejiang University |

06/10/2017 | Loops in the Bulk (web seminar) |
ICTP-SAIFR |

28/09/2017 | Loops in the Bulk |
Cornell University |

22/02/2017 | Projective Geometry of Scattering Amplitudes |
University of California, Los Angeles |

21/12/2016 | Projective Geometry of Scattering Amplitudes |
Nanjing University |

19/12/2016 | Projective Geometry of Scattering Amplitudes [slides] |
Zhejiang University |

14/12/2016 | Projective Geometry of Scattering Amplitudes |
ITP Chinese Academy of Sciences |

10/11/2016 | Projective Geometry of Scattering Amplitudes |
University of California, Davis |

07/11/2016 | Projective Geometry of Scattering Amplitudes |
Texas A&M University |

02/11/2016 | Projective Geometry of Scattering Amplitudes |
University of Michigan |

28/10/2016 | Projective Geometry of Scattering Amplitudes |
Institute for Advanced Study |

23/08/2016* | Some Geometric Aspects of Feynman Parametrizations [slides]Current Themes in High Energy Physics and Cosmology |
Niels Bohr International Academy |

05/07/2016* | Some Geometric Aspects of Feynman Parametrizations [videos, slides]Amplitudes 2016 |
Nordic Institute for Theoretical Physics |

23/04/2016* | Scattering Equations and KLT Relations [videos]SPOCK symposia |
Purdue University |

19/03/2016* | GR == Open String x Open StringMHV@30 |
Fermilab |

05/02/2016 | Tree & One-loop Scattering Amplitudes from Scattering Equations |
Institute for Advanced Study |

20/01/2016 | Soft Gravitons |
Institute for Advanced Study |

04-05/11/2015* | Scattering Equations & QFT Amplitudes (3hrs lectures) [videos]Amplitudes in Asia 2015 |
National Taiwan University |

03/02/2015 | Tree-Level S-Matrices: from Einstein to Yang-Mills, Born-Infeld, and More [slides] |
University of Cambridge |

27/01/2015 | Tree-Level S-Matrices: from Einstein to Yang-Mills, Born-Infeld, and More [slides] |
University of Oxford |

18/11/2014* | Scattering-Equations-Based Formulas [video, slides]IAS Focused Program on Scattering Amplitudes in Hong Kong |
Hong Kong University of Science and Technology |

11/06/2014* | Scattering Equations: Recent Developments and Applications [slides]Amplitudes 2014 |
IPhT/CEA-Saclay |

21/05/2014 | Are Soft Theorems Renormalized? |
Brown University |

21/02/2014 | alpha'-Expansion of Open String Disk Integrals via Mellin Transformations |
Perimeter Institute |

12/07/2013 | (with Song He), Scattering of Massless Particles in Arbitrary Dimension |
Perimeter Institute |

16/11/2012 | Virtual Color-Kinematics Duality: 6-pt 1-Loop MHV Amplitudes |
Perimeter Institute |

I am a postdoctoral researcher working on high energy theoretical physics.

I did my undergraduate study in Nanjing University. In 2011 I moved to Perimeter Institute for Theoretical Physics and the University of Waterloo, where I first did a one-year master in the Perimeter Scholars International program and then continued to PhD under the supervision of Dr. Freddy Cachazo. In 2015 I moved to Princeton and started working in the School of Natural Sciences, Institute for Advanced Study.

My name in Chinese is 袁野 (Yuán Yĕ). "Ellis" is an informal name that I use in publications (originally for the purpose of a unique identification on arXiv/INSPIRE). I grew up in a nice 'little' city called Tàicāng (太仓), which locates right beside Shànghăi. I also had the pleasure of spending the very first 4.5 years of my life in one of the old capitals of China, Luòyáng (洛阳).

Bloomberg Hall 206

School of Natural Sciences

Institute for Advanced Study

1 Einstein Drive

Princeton, NJ 08540, USA

yyuan@ias.edu

+1 (609) 734-8318