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Non-locality and gauge freedom in Deutsch and Hayden's formulation of quantum mechanics

David Wallace·Chris Timpson
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Abstract

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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David Wallace, Chris Timpson. 2005-03-16. Non-locality and gauge freedom in Deutsch and Hayden's formulation of quantum mechanics. https://doi.org/10.1007/s10701-007-9135-7

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