TY - JOUR AU - Aguilera-Verdugo, J. D. AU - Driencourt-Mangin, F. AU - Hernandez-Pinto, R. J. AU - Plenter, J. AU - Prisco, R. M. AU - Ramirez-Uribe, N. S. AU - Renteria-Olivo, A. E. AU - Rodrigo, G. AU - Sborlini, G. F. R. AU - Torres Bobadilla, W. J. AU - Tramontano, F. PY - 2021 DA - 2021// TI - A Stroll through the Loop-Tree Duality T2 - Symmetry-Basel JO - Symmetry-Basel SP - 1029 EP - 37pp VL - 13 IS - 6 PB - Mdpi KW - Feynman integrals KW - multi-loop calculations KW - perturbative QFT KW - higher orders AB - The Loop-Tree Duality (LTD) theorem is an innovative technique to deal with multi-loop scattering amplitudes, leading to integrand-level representations over a Euclidean space. In this article, we review the last developments concerning this framework, focusing on the manifestly causal representation of multi-loop Feynman integrals and scattering amplitudes, and the definition of dual local counter-terms to cancel infrared singularities. UR - https://arxiv.org/abs/2104.14621 UR - https://doi.org/10.3390/sym13061029 DO - 10.3390/sym13061029 LA - English N1 - WOS:000666742200001 ID - Aguilera-Verdugo_etal2021 ER -