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      Question

      Microsoft’s Majorana 2 quantum chip uses which

      material to shield qubits from environmental interference?
      A Aluminum Correct Answer Incorrect Answer
      B Silicon Correct Answer Incorrect Answer
      C Lead-based materials Correct Answer Incorrect Answer
      D Copper-based materials Correct Answer Incorrect Answer
      E Graphene Correct Answer Incorrect Answer

      Solution

      Microsoft’s Majorana 2 chip uses lead-based materials, unlike Google and IBM’s aluminum designs, to better shield qubits from environmental and cosmic interference. The quantum chip achieves 1,000-fold higher qubit reliability, with qubits holding states for ~20 seconds (up to 1 minute).

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