Parallel self-testing of (tilted) EPR pairs via copies of (tilted) CHSH

Understand

Device-independent self-testing allows a verifier to certify that potentially malicious parties hold on to a specific quantum state, based only on the observed correlations.

• Parallel self-testing has recently been explored, aiming to self-test many copies (i.e.
• a tensor product) of the target state concurrently.
• In this work, we show that $n$ EPR pairs can be self-tested in parallel through $n$ copies of the well known CHSH game.