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← ScienceWhich outcome occurs because measurement collapses previously entangled photons?
A)Instantaneous spin correlation at separation✓
B)Increased interference fringe visibility
C)Spontaneous emission acceleration
D)Increased quantum decoherence timescale
💡 Explanation
Instantaneous spin correlation occurs via quantum entanglement; measuring one photon's spin forces the other to adopt the correlated spin state due to wave function collapse. Therefore, measurement leads to correlation, rather than changes decoherence or interference effects.
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