“The discontinuous 'reduction of the wave packets' which cannot be derived from Schroedinger's equation is ... a consequence of the transition from the possible to the actual.” ScienceConsequenceWaveTransitionMechanicEquationsReductionQuantum Mechanics Author:Werner Heisenberg
“Can quantum mechanics represent the fact that an electron finds itself approximately in a given place and that it moves approximately with a given velocity, and can we make these approximations so close that they do not cause experimental difficulties?” FactsMovingGivenCausesDifficultyPhysicsQuantumMechanicQuantum PhysicsQuantum MechanicsElectronsVelocityApproximation Book:Gesammelte Werke Source: Gesammelte Werke
“The basic idea is to shove all fundamental difficulties onto the neutron and to do quantum mechanics in the nucleus.” IdeasDifficultyFundamentalsPhysicsQuantumMechanicQuantum PhysicsQuantum MechanicsNucleusNeutrons Author:Werner Heisenberg
“Nature allows only experimental situations to occur which can be described within the framework of the formalism of quantum mechanics” ScienceSituationQuantumMechanicFrameworkQuantum Mechanics Book:Gesammelte Werke Source: Gesammelte Werke
“It seems sensible to discard all hope of observing hitherto unobservable quantities, such as the position and period of the electron... Instead it seems more reasonable to try to establish a theoretical quantum mechanics, analogous to classical mechanics, but in which only relations between observable quantities occur.” TryingSeemsSciencePositionTheoryPeriodsRelationObservationReasonableSensibleQuantityQuantumMechanicObservingTheoreticalQuantum MechanicsElectrons Author:Werner Heisenberg
“It was about three o'clock at night when the final result of the calculation [which gave birth to quantum mechanics] lay before me ... At first I was deeply shaken ... I was so excited that I could not think of sleep. So I left the house ... and awaited the sunrise on top of a rock.” ThinkingFirstsScienceNightThreeHouseLeftSleepResultsRocksBirthLaysFinalsExcitedClockExcitementQuantumSunriseMechanicCalculationsQuantum Mechanics Author:Werner Heisenberg
“Modern physics has changed nothing in the great classical disciplines of, for instance, mechanics, optics, and heat. Only the conception of hitherto unexplored regions, formed prematurely from a knowledge of only certain parts of the world, has undergone a decisive transformation. This conception, however, is always decisive for the future course of research.” WorldScienceCertainCoursesKnowledgeModernChangedDisciplineResearchTransformationPhysicsInstanceHeatRegionsConceptionMechanicUnexploredOpticsModern Physics Book:Philosophical problems of quantum physics Source: Philosophical problems of quantum physics
