Quantum Physics

Quantum physics (or Quantum mechanics) is the fundamental physical theory that describes the behavior of matter and of light, typically at and below the scale of atoms.

Classical Mechanics can be derived from quantum mechanics as an approximation that is valid at ordinary scales.

Quantum systems have bound states that are quantized to discrete values of energy, momentum, angular momentum, and other quantities, in contrast to classical systems where these quantities can be measured continuously.

One of the main principles of quantum physics, namely the (Heisenberg’s) uncertainty principle, which states that there is a limit to the precision with which certain pairs of physical properties, such as position and momentum, can be simultaneously known (or measured).

Links:

  1. Wikipedia — Quantum mechanics

  2. Wikipedia — Uncertainty principle

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