Quantum computers to test fundamental physics or viceversa

We present two complementary viewpoints for combining quantum

computers and the foundations of quantum mechanics. On one hand,

ideal devices can be used as testbeds for experimental tests of the

foundations of quantum mechanics: we provide algorithms for the

Peres test of the superposition principle and the Sorkin test of

Born's rule. On the other hand, noisy intermediate-scale quantum

(NISQ) devices can be benchmarked using these same tests. These are

deep-quantum benchmarks based on the foundations of quantum theory

itself. We present test data from Rigetti hardware.

This is joint work with Simanraj Sadana and Urbasi Sinha