# Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape

@inproceedings{Altman2021OrientifoldCT, title={Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape}, author={Ross Altman and Jonathan Carifio and Xin Gao and Brent Nelson}, year={2021} }

We establish an orientifold Calabi-Yau threefold database for h1,1(X) ≤ 6 by considering non-trivial Z2 divisor exchange involutions, using a toric Calabi-Yau database (www.rossealtman.com/tcy). We first determine the topology for each individual divisor, then identify and classify the proper involutions which are globally consistent across all disjoint phases of the Kähler cone for each unique geometry. Each of the proper involutions will result in an orientifold Calabi-Yau manifold. Then we…

## One Citation

Machine Learning to the Orientifold Calabi-Yau with String Vacua

- Physics
- 2021

We use machine learning technique to search the polytope which can result in an orientifold Calabi-Yau hypersurface and the “naive Type IIB string vacua”. We show that neural networks can be trained…

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