Abstract
We present techniques to construct the Deutsch–Hayden representation for quantum field operators and apply them to an entangled state of identical nonrelativistic spin-1/2 fermions localized in well-separated spatial regions. Using these entangled field operators we construct operators measuring spin in localized spatial regions, and verify that matrix elements of the spin-measurement operators in the information-free Deutsch–Hayden state yield the expected correlations between pairs of both entangled and unentangled particles. The entangled Deutsch–Hayden representation field operators furnish an explicitly separable description of the entangled system.
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