"Relative State" Formulation of Quantum Mechanics

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interpretation of quantum mechanics many-worlds interpretation theoretical framework in physics

The "Relative State" Formulation of Quantum Mechanics is Hugh Everett III’s many-worlds interpretation, proposing that all possible outcomes of quantum measurements actually occur in a vast, branching multiverse without wavefunction collapse.

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Observed surface forms (1)

Surface form	Occurrences
"Relative State" Formulation of Quantum Mechanics (1957 paper)	1

Statements (48)

Predicate	Object
instanceOf	interpretation of quantum mechanics ⓘ many-worlds interpretation ⓘ theoretical framework in physics ⓘ
addresses	quantum measurement problem ⓘ
alsoKnownAs	Everett interpretation NERFINISHED ⓘ many-worlds interpretation NERFINISHED ⓘ relative-state interpretation NERFINISHED ⓘ
appliesTo	entire universe ⓘ
asserts	unitary time evolution is universal ⓘ
basedOn	universal wavefunction ⓘ
contrastsWith	Copenhagen interpretation NERFINISHED ⓘ objective collapse theories ⓘ
coreIdea	all possible outcomes of quantum measurements occur ⓘ each branch corresponds to a different relative state of observer and system ⓘ measurement yields branching of the universal wavefunction ⓘ
criticizedFor	difficulty of deriving Born rule ⓘ ontological extravagance ⓘ
defendedBy	Bryce DeWitt NERFINISHED ⓘ David Deutsch NERFINISHED ⓘ David Wallace NERFINISHED ⓘ
denies	wavefunction collapse ⓘ
eliminates	postulate of wavefunction collapse ⓘ
explains	appearance of probabilistic outcomes via branching ⓘ
formalismFeature	entangled states between observer and system ⓘ global pure state for combined system and observer ⓘ
historicalNote	initially neglected by most physicists ⓘ later became central to many-worlds discussions ⓘ
implies	existence of a multiverse of branching worlds ⓘ no single unique outcome to a quantum measurement ⓘ
influenced	decoherence-based interpretations ⓘ modern many-worlds literature ⓘ quantum cosmology ⓘ
introducedIn	1957 ⓘ
originalAuthorAffiliation	Princeton University NERFINISHED ⓘ
originalPaperTitle	"Relative State" Formulation of Quantum Mechanics NERFINISHED ⓘ
predicts	same experimental statistics as standard quantum mechanics ⓘ
proposedBy	Hugh Everett III NERFINISHED ⓘ
publishedIn	Reviews of Modern Physics NERFINISHED ⓘ
relatedConcept	branching worlds ⓘ quantum decoherence ⓘ self-locating uncertainty ⓘ
retains	deterministic evolution of the wavefunction ⓘ linearity of quantum mechanics ⓘ
treatsAsQuantumSystem	measuring apparatus ⓘ observed system ⓘ observer ⓘ
uses	Schrödinger equation NERFINISHED ⓘ relative states between subsystems ⓘ

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Hugh Everett III → doctoralThesisTitle → "Relative State" Formulation of Quantum Mechanics ⓘ

Hugh Everett III → notableWork → "Relative State" Formulation of Quantum Mechanics ⓘ

this entity surface form: "Relative State" Formulation of Quantum Mechanics (1957 paper)