Quantum theory may mean:

• Old quantum theory under the Bohr model
• Quantum mechanics, an umbrella term, particularly for nonrelativistic theories
• Quantum field theory, a generic type of relativistic quantum theory, which includes:
  • Quantum electrodynamics
  • Quantum chromodynamics
  • Electroweak interaction
• Quantum gravity, a general term for theories intended to quantize general relativity

See also Edit

• Introduction to quantum mechanics