Alice and Bob: The Cliffhanger Question
“The equation is deceptively simple: ER = EPR.
It’s not made up of numerical values, but instead represents the names of some key players in theoretical physics.
On the left side of the equation, the ER stands for Einstein and Nathan Rosen,and refers to a 1935 paper they wrote together describing wormholes, known technically as Einstein-Rosen bridges.
On the right side of the equation, EPR stands for Einstein, Rosen and Boris Podolsky, who co-wrote another paper that year describing quantum entanglement.”