KnowraLamb shiftLinked fromLinked fromThe 21 pages that link to Lamb shift, each with the reason it gives.All 21Broader topic 5Related 13Compared with 3Quantum electrodynamicsBroader topic: Its measurement provided a landmark test of QED's treatment of electron self-interaction.Hydrogen atomBroader topic: Its measurement exposed corrections missing from the Dirac equation’s original hydrogen prediction.Quantum fluctuationBroader topic: Vacuum-field effects shift atomic energy levels in a measurable way.Virtual particleBroader topic: Quantum-electrodynamic corrections, often illustrated with virtual-photon diagrams, account for it.Willis LambBroader topic: This is the spectral discrepancy Lamb and Retherford measured.