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Using quantum methods to read classical memories offers surprising advantages

(PhysOrg.com) -- Currently, the data stored in classical digital memories such as CDs, DVDs, and barcodes is read by classical light. But as a new study shows, using quantum light to read these classical memories can bring surprising advantages. Quantum light can read digital data using very few photons, an ability that could lead to faster digital readers and optical memories with larger storage capacities than before.

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