KnowraMatrix mechanicsLinked fromLinked fromThe 13 pages that link to Matrix mechanics, each with the reason it gives.All 13Broader topic 4Related 5Compared with 4Old quantum theoryCompared with: It abandoned classical electron orbits instead of refining their quantization.Arnold SommerfeldCompared with: It replaced orbit-based old quantum theory with a framework that no longer depends on electron trajectories.Sommerfeld modelCompared with: It marked a decisive break from assigning electrons classical-like orbits.Wave mechanicsCompared with: It reached the same physical predictions through a formulation distinct from wavefunctions.