Read the excerpt:
'Quantum computing leverages superposition and entanglement to execute complex calculations exponentially faster than classical supercomputers. However, maintaining quantum coherence requires cryogenic isolation near absolute zero, posing severe hardware engineering constraints.'
The main idea is that...
Answer and explanation
Correct answer: B. Quantum computing offers massive computational potential but faces steep physical constraints
- Step 1: The passage contrasts exponential computational speed with the extreme difficulty of cryogenic decoherence prevention. Step 2. The central idea pairs revolutionary potential with formidable hardware engineering hurdles. Answer: Quantum computing offers massive computational potential but faces steep physical constraints. Why not the others: Cryogenics are still essential, and quantum chips are far from consumer phones.
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