Andrzej Pokraka, PhD
I am a theoretical physicist studying the integrals that appear throughout quantum field theory and string theory. These integrals are the building blocks of observables such as scattering amplitudes and cosmological correlators. By attacking them with geometry, chiefly twisted (co)homology and intersection theory, I reveal their hidden simplicity and build better algorithms for computing them.
I hold a five-year senior postdoctoral position in UNIVERSE+, at the University of Amsterdam (2025–2027) and the Institute for Advanced Study in Princeton (2027–2030). Before that, I was a postdoctoral researcher at Brown University (2022–2025). I received my PhD from McGill University in 2022, supervised by Simon Caron-Huot.
Contact
Websites
Profiles
Research
My research interests lie at the intersection of geometry, particle physics, and cosmology. My main tool is twisted (co)homology and intersection theory. Specific interests include:
- Analytic structure of Feynman integrals: symbols, coactions, differential equations
- Analytic structure of cosmological correlators in FRW spacetimes: kinematic flow (differential equations), coactions, symbols
- Intersection numbers as a replacement for integration-by-parts reduction
- Elliptic, higher-genus and Calabi-Yau Feynman integrals
- The double copy for string-like integrals on Riemann surfaces of any genus
- Positive geometry and curve integrals
- Energy correlators
Publications
Selected publications
Twisted (co)homology and Feynman integrals
- S. Mizera and A. Pokraka, From Infinity to Four Dimensions: Higher Residue Pairings and Feynman Integrals, JHEP 02 (2020) 159, doi.org/10.1007/JHEP02(2020)159
- S. Caron-Huot and A. Pokraka, Duals of Feynman integrals. Part I. Differential equations, JHEP 12 (2021) 045, doi.org/10.1007/JHEP12(2021)045
- S. Caron-Huot and A. Pokraka, Duals of Feynman Integrals. Part II. Generalized unitarity, JHEP 04 (2022) 078, doi.org/10.1007/JHEP04(2022)078
- G. Crisanti, H. Frellesvig, A. Pokraka and S. Smith, Magic Relations and Critical Varieties of Feynman Integrals, arXiv:2605.29789, arxiv.org/abs/2605.29789
- C. Larkin, A. J. McLeod, A. Pokraka and L. Ren, Direct-to-Symbol Integration from Landau Analysis, arXiv:2609.15952, arxiv.org/abs/2609.15952
Elliptic and higher-genus integrals, and the double copy
- M. Giroux, A. Pokraka, F. Porkert and Y. Sohnle, The soaring kite: a tale of two punctured tori, JHEP 05 (2024) 239, doi.org/10.1007/JHEP05(2024)239
- A. Pokraka, L. Ren and C. Rodriguez, A double copy from twisted (co)homology at genus g, arXiv:2509.01598, arxiv.org/abs/2509.01598
Cosmological correlators
- S. De and A. Pokraka, Cosmology meets cohomology, JHEP 03 (2024) 156, doi.org/10.1007/JHEP03(2024)156
- S. De, S. Paranjape, A. Pokraka, M. Spradlin and A. Volovich, Hidden zeros of the cosmological wavefunction, JHEP 07 (2025) 174, doi.org/10.1007/JHEP07(2025)174
- R. Glew and A. Pokraka, Kinematic flow from the flow of cuts, JHEP 06 (2026) 158, doi.org/10.1007/JHEP06(2026)158
- A. J. McLeod, A. Pokraka and L. Ren, A Graphical Coaction for FRW Integrals from Partial/Relative Twisted (Co)homology, arXiv:2606.13627, arxiv.org/abs/2606.13627
Energy correlators
- R. Gonzo and A. Pokraka, Light-ray operators, detectors and gravitational event shapes, JHEP 05 (2021) 015, doi.org/10.1007/JHEP05(2021)015
- J. Gong, A. Pokraka, K. Yan and X. Zhang, Toward the analytic bootstrap of energy correlators, JHEP 06 (2026) 140, doi.org/10.1007/JHEP06(2026)140
Full list: inspirehep.net/authors/1649885
