Quantum phenomena

Fundamental behaviors of matter and energy at atomic and subatomic scales that deviate from the laws of classical mechanics.

Core Principles

  • superposition: The ability of a quantum system to exist in multiple states simultaneously until a measurement is performed.
  • entanglement: A phenomenon where particles become correlated such that the state of one particle instantaneously influences the state of another, regardless of distance.
  • wave-particle duality: The inherent property of quantum entities to exhibit both wave-like and particle-like characteristics.
  • quantum tunneling: The process by which particles traverse potential energy barriers that would be impassable according to classical physics.

Computational Applications

  • quantum-computing: The use of quantum-mechanical phenomena to perform computation.
    • Critical Analysis: Quantum Computing’s Diminishing Advantage: Hype Versus Reality argues that many of the touted advantages and practical use cases for quantum computing are evaporating as research progresses.