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Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms

May 23, 2016

27 pages

Published in:

Phys.Rev.D 94 (2016) 6, 064074

Published: Sep 28, 2016

e-Print:

1605.07180 [quant-ph]

DOI:

10.1103/PhysRevD.94.064074

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Abstract: (APS)

We study how two fully featured hydrogenlike atoms harvest entanglement from the electromagnetic field vacuum, even when the atoms are spacelike separated. We compare the electromagnetic case—qualitatively and quantitatively—with previous results that used scalar fields and featureless, idealized atomic models. Our study reveals the new traits that emerge when we relax these idealizations, such as anisotropies in entanglement harvesting and the effect of exchange of angular momentum. We show that, under certain circumstances, relaxing previous idealizations makes vacuum entanglement harvesting more efficient.

Note:

28 pages (12 pages manuscript + 16 pages of appendices), 6 figures. RevTeX 4.1. V4: A few minor typos corrected

angular momentum: exchange
field theory: scalar
entanglement
atom
electromagnetic
vacuum state
electromagnetic field
anisotropy

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