Which scientific technology is NOT typically used in modern retail smart shelf systems?

Smart shelf technology has revolutionized how retailers collect data and manage inventory. These high-tech shelving systems integrate various sensors and AI to transform the retail experience. Beyond simple weight sensors, modern smart shelves incorporate sophisticated technologies that provide retailers with unprecedented insights into product movement, customer behavior, and inventory management.

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RFID (Radio-Frequency Identification) sensors for real-time inventory tracking
Computer vision cameras for customer behavior analysis and heat mapping
Quantum computing processors for in-shelf data processing
Weight sensors that detect when products are removed or misplaced