What is the foundational concept behind cross-entropy benchmarking (XEB) and how is it used to measure the fidelity of quantum circuits?
Tuesday, 11 June 2024
by EITCA Academy
Cross-entropy benchmarking (XEB) is a pivotal technique employed in the realm of quantum computing to evaluate the fidelity of quantum circuits, particularly in the context of demonstrating quantum supremacy. The foundational concept behind XEB revolves around the comparison of experimentally obtained probability distributions with theoretically predicted distributions for a quantum circuit, typically a random circuit.

