T. Codina

activity

20182026

α^{' 3}

36 citations · 145 across the 10 of their papers we have counts for

collaborators

Showing 2021Show all

3 papers · 1 filter

hep-th2021★ 3 cited

Duality invariant string beta functions at two loops

Roberto Bonezzi, Tomas Codina, Olaf Hohm

We compute, for cosmological backgrounds, the $O (d, d; R)$ invariant beta functions for the sigma model of the bosonic string at two loops. This yields an independent first-…

hep-th2021★ 31 cited

General String Cosmologies at Order $α^{'}^{3}$

Tomas Codina, Olaf Hohm, Diego Marques

We compute the cosmological reduction of general string theories, including bosonic, heterotic and type II string theory to order $α^{' 3}$ , i.e., with up to eight derivatives. To t…

hep-th2021★ 10 cited

Beta functions for the duality-invariant sigma model

Roberto Bonezzi, Tomas Codina, Olaf Hohm

The $O (d, d)$ invariant worldsheet theory for bosonic string theory with $d$ abelian isometries is employed to compute the beta functions and Weyl anomaly at one-loop. We show that…

Duality invariant string beta functions at two loops

General String Cosmologies at Order α′3

Beta functions for the duality-invariant sigma model

General String Cosmologies at Order $α^{'}^{3}$