Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape

Ross Altman, Jonathan Carifio, Xin Gao +1

We establish an orientifold Calabi-Yau threefold database for $h^{1,1}(X)\le 6$ by considering non-trivial ${\mathbb{Z}}_2$ divisor exchange involutions, using a toric Calabi-Yau…