Difference between revisions of "Multiverse hypothesis"

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The '''Multiverse''', a theory in which multiple universes exist, is a consequence of one of the interpretations of Quantum Mechanics. Its origins lie in a 1957 thesis by [[Hugh Everett]], who offered a 'many worlds' interpretation (MWI) of some of the phenomena observed in quantum mechanical situations, such as the [[Two Slit Experiment]].
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The '''Multiverse''', a theory in which multiple universes exist, is a consequence of one of the interpretations of [[Quantum Mechanics]]. Its origins lie in a 1957 thesis by [[Hugh Everett]], who offered a 'many worlds' interpretation (MWI) of some of the phenomena observed in quantum mechanical situations, such as the [[Two Slit Experiment]].
  
 
In most formulations of the theory, the constituent 'universes' are identical, in that they have the same physical laws and the same values for the fundamental constants but exist in different states, and are arranged so that no information can pass between them. The state of the entire multiverse is constitued by a [[quantum superposition ]] of states of the constituent universes and is described by a single universal [[wavefunction]]. In a recent work, [[The Fabric of Reality]] (1997), [[David Deutsch]] argues that the universe as we experience it consists of an infinity of physically possible worlds all co-existing in all possible times, and that what we regard as reality is simply an individual mind's rendering of his or her journey through a sequence of individual panes of the multiverse.   
 
In most formulations of the theory, the constituent 'universes' are identical, in that they have the same physical laws and the same values for the fundamental constants but exist in different states, and are arranged so that no information can pass between them. The state of the entire multiverse is constitued by a [[quantum superposition ]] of states of the constituent universes and is described by a single universal [[wavefunction]]. In a recent work, [[The Fabric of Reality]] (1997), [[David Deutsch]] argues that the universe as we experience it consists of an infinity of physically possible worlds all co-existing in all possible times, and that what we regard as reality is simply an individual mind's rendering of his or her journey through a sequence of individual panes of the multiverse.   
  
 
Related ideas are are [[Richard Feynman]]'s multiple histories interpretation, [[Dieter Zeh]]'s many-minds interpretation, and [[David Kellogg Lewis]]'s [[Modal Realism]] theory of [[Possible worlds]].
 
Related ideas are are [[Richard Feynman]]'s multiple histories interpretation, [[Dieter Zeh]]'s many-minds interpretation, and [[David Kellogg Lewis]]'s [[Modal Realism]] theory of [[Possible worlds]].
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[[category:physics]]
 
[[category:physics]]

Revision as of 07:43, August 14, 2007

The Multiverse, a theory in which multiple universes exist, is a consequence of one of the interpretations of Quantum Mechanics. Its origins lie in a 1957 thesis by Hugh Everett, who offered a 'many worlds' interpretation (MWI) of some of the phenomena observed in quantum mechanical situations, such as the Two Slit Experiment.

In most formulations of the theory, the constituent 'universes' are identical, in that they have the same physical laws and the same values for the fundamental constants but exist in different states, and are arranged so that no information can pass between them. The state of the entire multiverse is constitued by a quantum superposition of states of the constituent universes and is described by a single universal wavefunction. In a recent work, The Fabric of Reality (1997), David Deutsch argues that the universe as we experience it consists of an infinity of physically possible worlds all co-existing in all possible times, and that what we regard as reality is simply an individual mind's rendering of his or her journey through a sequence of individual panes of the multiverse.

Related ideas are are Richard Feynman's multiple histories interpretation, Dieter Zeh's many-minds interpretation, and David Kellogg Lewis's Modal Realism theory of Possible worlds.