KnowraQuantum vacuum stateLinked fromLinked fromThe 12 pages that link to Quantum vacuum state, each with the reason it gives.All 12Broader topic 1Related 5Narrower topic 6Cosmological constant problemRelated: Its properties underlie estimates of vacuum energy.Casimir effectNarrower topic: The effect is often described through changes in vacuum fluctuations constrained by the surfaces.Spontaneous emissionRelated: Vacuum field modes enable emission even when no external light is present.Quantum fieldRelated: Its physical structure complicates the simple picture of empty space.Quantum fluctuationBroader topic: Vacuum fluctuations are fluctuations of fields in their lowest-energy state.Hendrik CasimirNarrower topic: Casimir’s calculation treated the vacuum electromagnetic field between the plates.Quantum field theory in curved spacetimeRelated: Curved or time-dependent geometry can make vacuum definitions observer-dependent.Vacuum energyNarrower topic: Vacuum energy is a property assigned to this particle-free field state.Unruh effectNarrower topic: The effect shows that vacuum status depends on the observer’s motion and mode definition.Virtual particleRelated: Vacuum diagrams and field correlations are sometimes loosely described using virtual-particle language.QED vacuumNarrower topic: The QED vacuum is the electromagnetic instance of this broader quantum state.Scharnhorst effectNarrower topic: The effect depends on how conducting boundaries alter quantum-vacuum fluctuations.