The proper Landau-Ginzburg potential is the open mirror map

Tim Gräfnitz, Helge Ruddat, Eric Zaslow

The mirror dual of a smooth toric Fano surface $X$ equipped with an anticanonical divisor $E$ is a Landau-Ginzburg model with superpotential, W. Carl-Pumperla-Siebert give a defini…