ABSTRACT

Iain Martel offers a very nice model for EPR, an especially natural one for quantum realists because it takes the quantum state entirely seriously. The entangled quantum state of the two particles exists at the instant of measurement in both the left-hand and right-hand wings of the experiment. It, in conjunction with the operating apparatus, produces new nonentangled states for the two particles in each wing; it produces one state “with its left hand” and the other “with its right hand”. All that is strange is that a spatially extended cause acts “all at once” in two different places.