Which outcome occurs when two entangled photons with correlated polarization pass through birefringent crystals differently?

💡 Explanation

When entangled photons traverse materials causing unequal phase retardation based on polarization, the photons' flight correlations still exist however magnitude of observed entanglement reduces, due to partial distinguishability. Therefore entanglement magnitude is altered while preserving correlation, rather than decoherence, complete reversal, or perfect correlation needing matched processing.

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