KnowraQuantum theoryLinked fromLinked fromThe 9 pages that link to Quantum theory, each with the reason it gives.All 9Narrower topic 9Max PlanckNarrower topic: Planck’s radiation hypothesis marked the beginning of this broader theoretical tradition.Planck's lawNarrower topic: Planck's energy-element hypothesis became a starting point for quantum theory.Debye modelNarrower topic: Quantized oscillator energies let the model explain heat capacities classical physics could not.Einstein coefficientsNarrower topic: The coefficients are an early quantitative bridge between quantum transitions and radiation.Bohr–van Leeuwen theoremNarrower topic: The theorem’s significance lies in showing that quantum theory is needed to explain equilibrium magnetism.Debye T³ lawNarrower topic: Quantized lattice vibrations explain why low-temperature heat capacity departs from classical predictions.Gustav Ludwig HertzNarrower topic: Hertz’s measurements provided direct evidence for one of quantum theory’s central claims.Igor PlotnitskyNarrower topic: Its historical development supplies the intellectual setting for Plotnitsky’s scholarship.Planck postulateNarrower topic: The postulate is an early step in the theory’s historical development.