(Quantum) Cross-Entropy Benchmark Fidelity

Simulating quantum supremacy benchmarking with random unitary sampling.

This repo collects and demos the code discussed in the blog post Unpacking the Quantum Supremacy Benchmark with Python by M. Sohaib Alam and Will Zeng. To view the output of the computations discussed in the blog, you can

• Run the jupyter notebook xeb_calcs.ipynb, or
• Execute python xeb.py from a terminal shell.

A small appendix is available in xeb_post_appendix.pdf, and outlines the derivation for the theoretical values of the benchmark fidelity used in the blog post.