Which scientific technology is NOT typically integrated into modern retail smart shelf systems?

In the intersection of retail technology and scientific advancement, smart shelves represent a significant innovation. These systems use various sensors and data analytics to transform traditional retail operations. Test your knowledge about this cutting-edge retail technology that uses scientific principles to solve inventory and customer experience challenges.

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RFID (Radio Frequency Identification) sensors for inventory tracking
Weight sensors to detect product removal and restocking needs
Quantum computing processors for real-time inventory decisions
Digital display technology for dynamic pricing and product information