90 years ago today, on May 15, 1935, Albert Einstein, Boris Podolsky and Nathan Rosen (EPR) published the article "Can Quantum-Mechanical Description of Physical Reality be Considered Complete?" in the prestigious Physical Review (A. Einstein, 1935). In it, they set out two principles.
A look back at 90 years of entanglement, an article by Johanna Klein, Ph.D.

