28 citations · 122 across the 35 of their papers we have counts for
4 papers · 1 filter
Tunneling in asymmetric double well: instanton calculus
A. Rivero
The level splitting formula of an asymmetric double well potential is calculated taking into account the multi-instanton contributions (dilute gas approximation). Results can be re…
A Short Lecture on Divergences
Alejandro Rivero
We present some clues to the study of the renormalization group, at graduate level, as well as some bibliographical pointers to classical resources. Just the kind of things one had…
Around Poincare duality, in discrete spaces
Alejandro Rivero
We walk out the landscape of K-theoretic Poincare Duality for finite algebras. It paves the way to get continuum Dirac operators from discrete noncommutative manifolds.
Discrete spectral triples converging to dirac operators
Alejandro Rivero
We exhibit some series of discrete spectral triples converging to the canonical spectral triple of a finite dimensional manifold. Thus the non-go theorem of Goekeler and Schuecker…