What is quantum mechanics?

Quantum mechanics is a branch of physics that deals with the behavior of matter and energy at a microscopic level, such as atoms and subatomic particles. Unlike classical mechanics, which describes the behavior of large objects and follows deterministic laws of motion, quantum mechanics is characterized by the uncertainty principle, where the exact position and momentum of particles cannot be simultaneously determined with precision. This leads to the concept of wave-particle duality, where particles can behave as both waves and particles, and the phenomenon of superposition, where particles can exist in multiple states simultaneously. Quantum mechanics has led to revolutionary advancements in technology, such as the development of quantum computers and cryptography, and is the basis for many fundamental theories in physics.

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