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How can quantum field operators encode entanglement?

Authors :
Rubin, Mark A.
Source :
International Journal of Modern Physics A, Vol. 37, No. 28n29, 2250174 (2022)
Publication Year :
2022

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.<br />Comment: 29 pages, no figures. Typos corrected, minor changes in wording, conclusions unchanged

Subjects

Subjects :
Quantum Physics

Details

Database :
arXiv
Journal :
International Journal of Modern Physics A, Vol. 37, No. 28n29, 2250174 (2022)
Publication Type :
Report
Accession number :
edsarx.2207.09020
Document Type :
Working Paper
Full Text :
https://doi.org/10.1142/S0217751X22501743