Deutsch and Hayden have proposed an alternative formulation of quantum mechanics which is completely local. We argue that their proposal must be understood as having a form of ‘gauge freedom’ according to which mathematically distinct states are physically equivalent. Once this gauge freedom is taken into account, their formulation is no longer local.
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D. Deutsch and P. Hayden, “Information flow in Entangled quantum systems,” Proc. R. Soc. Lond. A456, 1759–1774 (2000), available online at http://xxx.arxiv.org/abs/quant-ph/9906007.
Aharonov Y. and Bohm D. (1959). “Significance of electromagnetic potentials in the quantum theory,” Phys. Rev. 115(3): 485–491
Deutsch D. (1996). “Comment on Lockwood.” Brit. J. Phil. Sci. 47: 222–228
Timpson C.G.(2005). “Nonlocality and information flow: the approach of Deutsch and Hayden.” Found. Phys. 35(2): 313–343
In QFT, this is a consequence of the requirement that spacelike separated observables must commute.
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Wallace, D., Timpson, C.G. Non-locality and Gauge Freedom in Deutsch and Hayden’s Formulation of Quantum Mechanics. Found Phys 37, 1069–1073 (2007). https://doi.org/10.1007/s10701-007-9142-8
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DOI: https://doi.org/10.1007/s10701-007-9142-8