Foundations of Physics

, Volume 37, Issue 1, pp 159–168 | Cite as

Time-Symmetric Quantum Mechanics


A time-symmetric formulation of nonrelativistic quantum mechanics is developed by applying two consecutive boundary conditions onto solutions of a time- symmetrized wave equation. From known probabilities in ordinary quantum mechanics, a time-symmetric parameter P0 is then derived that properly weights the likelihood of any complete sequence of measurement outcomes on a quantum system. The results appear to match standard quantum mechanics, but do so without requiring a time-asymmetric collapse of the wavefunction upon measurement, thereby realigning quantum mechanics with an important fundamental symmetry.


quantum mechanics time reversal symmetry time reversal operator 


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© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of PhysicsSan José State UniversitySan JoséUSA

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