Physics · Quantum Mechanics
Which statement best defines 'Quantum Coherence'?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The phenomenon where a quantum particle splits into multiple sub-atomic fragments due to external energy.
- 2The ability of a quantum system to maintain a well-defined phase relationship and pure state over time without environmental disruption.✓
- 3The complete alignment of electronic spins in a classical ferromagnetic material at absolute zero temperature.
- 4The process by which a quantum particle transitions into a completely classical state via interaction with a macro-system.
Correct answer
The ability of a quantum system to maintain a well-defined phase relationship and pure state over time without environmental disruption.
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