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Influence and application of EPR paradox
EPR paradox reveals the basic nonclassical nature of the measurement process, thus promoting physicists' understanding of quantum mechanics. Before the publication of EPR paper, measurement was often considered as a physical disturbance, which directly acted on the system under test. For example, measuring the position of an electron can be imagined as irradiating an electron with a beam of light waves, which will disturb the electron and cause the uncertainty of its position. This explanation is often encountered in popular science articles about quantum mechanics. EPR paradox points out the error of this explanation, and shows that it is not necessary to disturb a particle when measuring its properties, but to predict its properties by measuring the properties of distant entangled particles.

Bell inequality and a series of precise experiments led by A. Aspeck supported and deepened the viewpoint of quantum mechanics without objection, and also opened up some new research directions with broad application prospects, such as quantum informatics. From this perspective, both Bohr and Einstein promoted the great development of quantum physics in this debate.

Many technologies under development rely on quantum entanglement as the basic operating mechanism. In quantum cryptography, entangled particles are used to transmit information. Using this method, any eavesdropping behavior will inevitably leave traces. In quantum computing, entangled quantum States can be calculated in parallel, allowing some operations to be much faster than classical computers.