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Sebastian Mizera

Portrait de Sebastian Mizera

Areas of Research:
Email: smizera@perimeterinstitute.ca

Research Interests

My research is motivated by trying to understand the structure of quantum field theories, quantum gravity, and string theory. In the recent years I found a natural generalization of the Cachazo-He-Yuan formalism for scattering amplitudes in quantum field theories that makes its connections to string theory transparent and allows for analytic computations. These more fundamental objects are called intersection numbers and take a form of localization integrals on moduli spaces. Surprisingly, they turn out to also play an important role in the study of the analytic structure of Feynman integrals.

Recent Publications

  • "Vector Space of Feynman Integrals and Multivariate Intersection Numbers", Hjalte Frellesvig, Federico Gasparotto, Manoj K. Mandal, Pierpaolo Mastrolia, Luca Mattiazzi, SM, arXiv: 1907.02000 [hep-th]
  • "Aspects of Scattering Amplitudes and Moduli Space Localization", SM, arXiv: 1906.02099 [hep-th]
  • "Scattering Equations: From Projective Spaces to Tropical Grassmannians", Freddy Cachazo, Nick Early, Alfredo Guevara, SM, JHEP 1906 (2019) 039, arXiv: 1903.08904 [hep-th]
  • "Decomposition of Feynman Integrals on the Maximal Cut by Intersection Numbers", Hjalte Frellesvig, Federico Gasparotto, Stefano Laporta, Manoj K. Mandal, Pierpaolo Mastrolia, Luca Mattiazzi, SM, JHEP 1905 (2019) 153, arXiv: 1901.11510 [hep-ph]
  • "Delta-Algebra and Scattering Amplitudes", Freddy Cachazo, Nick Early, Alfredo Guevara, SM, JHEP 1902 (2019) 005, arXiv: 1812.01168 [hep-th]
  • "Feynman Integrals and Intersection Theory", Pierpaolo Mastrolia, SM, JHEP 1902 (2019) 139, arXiv: 1810.03818 [hep-th]
  • "Perturbiner Methods for Effective Field Theories and the Double Copy", SM, Barbara Skrzypek, JHEP 1810 (2018) 018, arXiv: 1809.02096 [hep-th]
  • "The S Matrix of 6D Super Yang-Mills and Maximal Supergravity from Rational Maps", Freddy Cachazo, Alfredo Guevara, Matthew Heydeman, SM, John H. Schwarz, Congkao Wen, JHEP 1809 (2018) 125, arXiv: 1805.11111 [hep-th]
  • "Scattering Amplitudes from Intersection Theory", SM, Phys.Rev.Lett. 120 (2018) no.14, 141602, arXiv: 1711.00469 [hep-th]
  • "Renormalization of tensor networks using graph independent local truncations", Markus Hauru, Clement Delcamp, SM, Phys.Rev. B97 (2018) no.4, 045111, arXiv: 1709.07460 [cond-mat.str-el]
  • "Combinatorics and Topology of Kawai-Lewellen-Tye Relations", SM, JHEP 1708 (2017) 097, arXiv: 1706.08527 [hep-th]
  • "A String Deformation of the Parke-Taylor Factor", SM, Guojun Zhang, Phys.Rev. D96 (2017) no.6, 066016, arXiv: 1705.10323 [hep-th]
  • "Can scalars have asymptotic symmetries?", Miguel Campiglia, Leonardo Coito, SM, Phys.Rev. D97 (2018) no.4, 046002, arXiv: 1703.07885 [hep-th]
  • "Echoes of Asymptotic Silence in Causal Set Quantum Gravity", Astrid Eichhorn, SM, Sumati Surya, Class.Quant.Grav. 34 (2017) no.16, 16LT01, arXiv: 1703.08454 [gr-qc]
  • "CHY Loop Integrands from Holomorphic Forms", Humberto Gomez, SM, Guojun Zhang, JHEP 1703 (2017) 092, arXiv: 1612.06854 [hep-th]
  • "Inverse of the String Theory KLT Kernel", SM, JHEP 1706 (2017) 084, arXiv: 1610.04230 [hep-th]
  • "Scattering Equations: Real Solutions and Particles on a Line", Freddy Cachazo, SM, Guojun Zhang, JHEP 1703 (2017) 151, arXiv: 1609.00008 [hep-th]
  • "Extensions of Theories from Soft Limits", Freddy Cachazo, Peter Cha, SM, JHEP 1606 (2016) 170, arXiv: 1604.03893 [hep-th]
  • "Decorated tensor network renormalization for lattice gauge theories and spin foam models", Bianca Dittrich, SM, Sebastian Steinhaus, New J.Phys. 18 (2016) no.5, 053009, arXiv: 1409.2407 [gr-qc]
  • "Spectral dimension in causal set quantum gravity", Astrid Eichhorn, SM, Class.Quant.Grav. 31 (2014) 125007, arXiv: 1311.2530 [gr-qc]
  • "Multi-colour detection of gravitational arcs", Matteo Maturi, SM, Gregor Seidel, Astron.Astrophys. 567 (2014) A111, arXiv: 1305.3608 [astro-ph.CO]