# Nathan Rosen

Nathan Rosen, a Member (1934–36) in the School of Mathematics, coauthored with Albert Einstein the paper "The Particle Problem in the General Theory of Relativity," which introduced the concept of an Einstein-Rosen bridge, or wormwhole, in 1935. That same year, Rosen coauthored the paper "Can Quantum-Mechanical Description of Physical Reality be Considered Complete?" with Einstein and Boris Podolsky, commonly referred to as EPR. The EPR paper pointed out that quantum mechanics had a very funny property later called “quantum entanglement,” a kind of correlation between two distant physical systems currently involved in the work of Professor Juan Maldacena, among others.

### Entanglement and the Geometry of Spacetime

In 1935, Albert Einstein and collaborators wrote two papers at the Institute for Advanced Study. One was on quantum mechanics [1] and the other was on black holes [2]. The paper on quantum mechanics is very famous and influential. It pointed out...

### The Advent and Fallout of EPR

By Kelly Devine Thomas

"Einstein Attacks Quantum Theory” read the New York Times headline of May 4, 1935. The article continued:

Professor Albert Einstein will attack science’s important theory of quantum mechanics, a theory of which he was a sort...

### A Quantum Story

In the two years I spent at the Institute, 1957–59, I had the opportunity of meeting two of the founders of the quantum theory—Niels Bohr and Paul Dirac. In the case of Bohr, perhaps “meeting” overstates the case. He was a Mem­ber in the spring...