2 papers
quant-ph2026
Revisiting the Page curve and its moments. A combinatorial approach
Gero von Gersdorff
We revisit the calculation of the von Neumann (or "entanglement") entropy of a subsystem of a pure quantum state, under the assumption that the latter is drawn at random from a uni…
hep-ph2026
Feynman integral reduction by covariant differentiation
Gero von Gersdorff, Vinicius Lessa
We show how a large class of Feynman integrals can be efficiently reduced to master integrals by suitable covariant differentiation on the vector space dual to the one spanned by t…