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Quantum coherence and quantum entanglement are two sides of the same coin (2015)
- superkuh 4y agoCoherence isn't what you think it is. It is not an "alignment in phase" of the sinusoid, like all the lay diagrams show. It isn't even being the same frequency. In the early days of quantum physics the light sources were mercury arc lamps (muliple freqs) that achieved coherence by shining through tiny pinholes. http://amasci.com/miscon/coherenc.html http://amasci.com/miscon/coherenc.html Coherence is being a point source. Stars, except for our sun since it is too close, are coherent light sources.