Foundations of Physics

, Volume 41, Issue 6, pp 982–1006 | Cite as

The Quasiclassical Realms of This Quantum Universe

Open Access


The most striking observable feature of our indeterministic quantum universe is the wide range of time, place, and scale on which the deterministic laws of classical physics hold to an excellent approximation. This essay describes how this domain of classical predictability of every day experience emerges from a quantum theory of the universe’s state and dynamics.


Quantum mechanics Quantum cosmology Quasiclassical realm Classical limit Emergence 


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Copyright information

© The Author(s) 2010

Authors and Affiliations

  1. 1.Department of PhysicsUniversity of CaliforniaSanta BarbaraUSA
  2. 2.Santa Fe InstituteSanta FeUSA

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