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hep-th2024
Intersection theory, relative cohomology and the Feynman parametrization
Mingming Lu, Ziwen Wang, Li Lin Yang
We present a novel approach for loop integral reduction in the Feynman parametrization using intersection theory and relative cohomology. In this framework, Feynman integrals corre…
cond-mat.quant-gas2024★ 8 cited
Dynamical signatures of the Yang-Lee edge singularity in non-Hermitian systems
Ming-Chu Lu, Shun-Hui Shi, Gaoyong Sun
The Yang-Lee edge singularity is an intriguing critical phenomenon characterized by nonunitary field theory. However, its experimental realization for interacting many-body systems…