# Time-Symmetric Boundary Conditions and Quantum Foundations

@article{Wharton2010TimeSymmetricBC, title={Time-Symmetric Boundary Conditions and Quantum Foundations}, author={Ken B. Wharton}, journal={Symmetry}, year={2010}, volume={2}, pages={272-283} }

Despite the widely-held premise that initial boundary conditions (BCs) corresponding to measurements/interactions can fully specify a physical subsystem, a literal reading of Hamilton’s principle would imply that both initial and final BCs are required (or more generally, a BC on a closed hypersurface in spacetime). Such a time-symmetric perspective of BCs, as applied to classical fields, leads to interesting parallels with quantum theory. This paper will map out some of the consequences of…

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