Quantum vacuum (disambiguation)

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The quantum vacuum state or simply quantum vacuum refers to the quantum state with the lowest possible energy.

Quantum vacuum may also refer to:

• Quantum chromodynamic vacuum (QCD vacuum), a non-perturbative vacuum
• Quantum electrodynamic vacuum (QED vacuum), a field-theoretic vacuum
• Quantum vacuum (ground state), the state of lowest energy of a quantum system
  • Quantum vacuum collapse, a hypothetical vacuum metastability event
  • Quantum vacuum expectation value, an operator's average, expected value in a quantum vacuum
• Quantum vacuum energy, an underlying background energy that exists in space throughout the entire Universe
• The Quantum Vacuum, a physics textbook by Peter W. Milonni