Entangled photon pairs can be produced and manipulated without losing their entangled state. Introducing a fiber Bragg grating with varying indices of refraction can theoretically delay the reception times of these photons. However, practical methods such as coiling fiber or increasing the travel distance of one photon are commonly used to achieve this delay, as demonstrated in delayed choice quantum eraser experiments. The entangled state remains intact despite these alterations, countering concerns about "spooky action at a distance" as posited by Einstein.
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yeezyseason3 said:Is it possible to produce an entangled photon pair and be able to delay the reception times by introducing something like a fiber bragg grating which has multiple indices of refraction which propagate wavelengths at different frequencies? Or will, because of their entangled state, do some "spooky things" according to Einstein and as a result won't work?