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Bipartite Measurements in Minkowski Space

King, Robbie (2021) Bipartite Measurements in Minkowski Space. [Preprint]


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We study the measurements which Alice and Bob can perform on a bipartite quantum system, where Alice and Bob are spacelike separated. For a measurement to be possible, it must be causal i.e. non-signalling. Within causal measurements, we define four notions of ‘localisability’. Each of the four classes of measurement restricts the actions of Alice and Bob in different ways, and we study their relative power. We end with a discussion of the difficulties posed by non-local measurements for the idea of wavefunction collapse.

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Item Type: Preprint
King, Robbierobbieking1000@gmail.com0000-0002-8152-6340
Subjects: Specific Sciences > Physics > Quantum Mechanics
Depositing User: Mr W. Robbie King
Date Deposited: 09 Sep 2021 19:17
Last Modified: 09 Sep 2021 19:17
Item ID: 19549
Subjects: Specific Sciences > Physics > Quantum Mechanics
Date: 2021

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