Improvement of the polarized neutron interferometer setup demonstrating violation of a Bell-like inequality.
Nucl Instrum Methods Phys Res A
; 763: 417-423, 2014 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-26089579
ABSTRACT
For precise measurements with polarised neutrons high efficient spin-manipulation is required. We developed several neutron optical elements suitable for a new sophisticated setup, i.e., DC spin-turners and Larmor-accelerators which diminish thermal disturbances and depolarisation considerably. The gain in performance is exploited demonstrating violation of a Bell-like inequality for a spin-path entangled single-neutron state. The obtained value of [Formula see text], which is much higher than previous measurements by neutron interferometry, is [Formula see text] above the limit of S=2 predicted by contextual hidden variable theories. The new setup is more flexible referring to state preparation and analysis, therefore new, more precise measurements can be carried out.
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MEDLINE
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En
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2014
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Article