3 papers
hep-th2026
Wormholes as red herrings: reflection positivity and the reconstruction of unitary quantum field theories
Jacob McNamara, Zhencheng Wang
As Coleman famously argued, the apparent breakdown of partition-function factorization in quantum gravity associated with Euclidean wormholes is a red herring, arising from a hidde…
hep-th2026
GSO Defects: IIA/IIB Walls and the Surprisingly Stable -Brane
Jonathan J. Heckman, Jacob McNamara, Julio Parra-Martinez +1
The recently proposed Swampland Cobordism Conjecture predicts the existence of new non-supersymmetric objects which supplement the spectrum of low-energy gravitational effective fi…
hep-th2024
Wormhole Renormalization: The gravitational path integral, holography, and a gauge group for topology change
Elliott Gesteau, Matilde Marcolli, Jacob McNamara
We study the Factorization Paradox from the bottom up by adapting methods from perturbative renormalization. Just as quantum field theories are plagued with loop divergences that n…