Quantum theory

Quantum theory may refer to:

• Quantum mechanics, a major field of physics
• Old quantum theory, predating modern quantum mechanics
• Quantum field theory, an area of quantum mechanics that includes:
  • Quantum electrodynamics
  • Quantum chromodynamics
  • Electroweak interaction
• Quantum gravity, a field of theoretical physics
• Quantum optics
• Quantum chemistry
• Quantum information
• Quantum Theory: Concepts and Methods, a 1993 book by Asher Peres

• Quantum Theory (video game), a 2010 video game
• "Quantum Theory", a song on the Jarvis Cocker album Jarvis