Experimental test of nonlocal quantum correlation in relativistic configurations
Abstract
We report on an experimental investigation of the tension between quantum nonlocality and relativity. Entangled photons are sent via an optical fiber network to two villages near Geneva, separated by more than 10 km where they are analyzed by interferometers. The photon pair source is set as precisely as possible in the center so that the two photons arrive at the detectors within a time interval of less than 5 ps (corresponding to a path length difference of less than 1 mm). One detector is set in motion so that both detectors, each in its own inertial reference frame, are first to do the measurement! The data always reproduces the quantum correlations, making it thus more difficult to consider the projection postulate as a compact description of real collapses of the wave function.
 Publication:

Physical Review A
 Pub Date:
 February 2001
 DOI:
 10.1103/PhysRevA.63.022111
 arXiv:
 arXiv:quantph/0007009
 Bibcode:
 2001PhRvA..63b2111Z
 Keywords:

 03.65.Ta;
 Foundations of quantum mechanics;
 measurement theory;
 Quantum Physics
 EPrint:
 26 pages including 8 figures