Showing 2026Show all
2 papers · 1 filter
hep-th2026
Finding CFTs from spatial positivity of partition functions
Léo Buisine, Horacio Casini, Leandro Martinek
We discuss a positivity property for partition functions that generalizes modular invariance and which is here conjectured to hold for general 2D CFTs. We show its relation to posi…
hep-th2026
Exact mutual information for free massless fermions in any dimension
Nicolás Abate, Leandro Martinek
We obtain an exact expression for the Rényi mutual information (RMI) between two spherical regions for a free, massless Dirac field in spacetime dimensions and for a massless R…