Editing Wave function (section)

== Ontology ==
{{main|Interpretations of quantum mechanics}}

Whether the wave function exists in reality, and what it represents, are major questions in the [[interpretation of quantum mechanics]]. Many famous physicists of a previous generation puzzled over this problem, such as [[Erwin Schrödinger]], [[Albert Einstein]] and [[Niels Bohr]]. Some advocate formulations or variants of the [[Copenhagen interpretation]] (e.g. Bohr, [[Eugene Wigner]] and [[John von Neumann]]) while others, such as [[John Archibald Wheeler]] or [[Edwin Thompson Jaynes]], take the more classical approach{{sfn|Jaynes|2003}} and regard the wave function as representing information in the mind of the observer, i.e. a measure of our knowledge of reality.  Some, including Schrödinger, [[David Bohm]] and [[Hugh Everett III]] and others, argued that the wave function must have an objective, physical existence. Einstein thought that a complete description of physical reality should refer directly to physical space and time, as distinct from the wave function, which refers to an abstract mathematical space.{{sfn|Einstein|1998|p=682}}