Question: Which scientist was awarded the Nobel Prize in Physics in 2021 for their work on complex physical systems?

Options:

1. Alain Aspect
2. John F. Clauser
3. Anton Zeilinger
4. All of the above

Correct Answer: All of the above

Solution:

Alain Aspect, John F. Clauser, and Anton Zeilinger were jointly awarded the Nobel Prize in Physics in 2022 for their experiments with entangled photons.