Entanglement-based 3D magnetic gradiometry with an ultracold atomic scattering halo

Shin, D. K.; Ross, J. A.; Henson, B. M.; Hodgman, Sean; Truscott, A. G.

doi:10.1088/1367-2630/ab66de

Cited by 9 publications

(5 citation statements)

References 37 publications

(89 reference statements)

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“…This represents an atomic realization of a Rarity-Tapster type interferometer [9] (see Fig. 1) and a continuation of our previous experiments using such pair-correlated atoms [44][45][46][47][48]. We present our experimental evidence of spatial separated interference in Sec.…”

Section: Introductionsupporting

confidence: 64%

A matter wave Rarity-Tapster interferometer to demonstrate non-locality

Thomas¹,

Henson²,

Wang³

et al. 2022

Preprint

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We present an experimentally viable approach to demonstrating quantum non-locality in a matter wave system via a Rarity-Tapster interferometer using two s-wave scattering halos generated by colliding helium Bose-Einstein condensates. The theoretical basis for this method is discussed, and its suitability is experimentally quantified. As a proof of concept, we demonstrate an interferometric visibility of V = 0.42(9), corresponding to a maximum CSHS-Bell parameter of S = 1.1(1), for the Clauser-Horne-Shimony-Holt (CHSH) version of the Bell inequality, between atoms separated by ∼ 4 correlation lengths. This constitutes a significant step towards a demonstration of a Bell inequality violation for motional degrees of freedom of massive particles and possible measurements of quantum effects in a gravitationally sensitive system.

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Section: Introductionsupporting

confidence: 64%

A matter wave Rarity-Tapster interferometer to demonstrate non-locality

Thomas¹,

Henson²,

Wang³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…This represents an atomic realization of a Rarity-Tapster type interferometer [10] (see Fig. 1) and a continuation of our previous experiments using such pair-correlated atoms [45][46][47][48][49]. We present our experimental evidence of spatial separated interference in Sect.…”

Section: Introductionsupporting

confidence: 62%

A matter-wave Rarity–Tapster interferometer to demonstrate non-locality

et al. 2022

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We present an experimentally viable approach to demonstrate quantum non-locality in a matter-wave system via a Rarity–Tapster interferometer using two $$s$$ s -wave scattering halos generated by colliding helium Bose–Einstein condensates. The theoretical basis for this method is discussed, and its suitability is experimentally quantified. As a proof of concept, we demonstrate an interferometric visibility of $$V=0.42(9)$$ V = 0.42 ( 9 ) , corresponding to a maximum CSHS-Bell parameter of $$S=1.1(1)$$ S = 1.1 ( 1 ) , for the Clauser–Horne–Shimony–Holt (CHSH) version of the Bell inequality, between atoms separated by $$\sim 4$$ ∼ 4 correlation lengths. This constitutes a significant step toward a demonstration of a Bell inequality violation for motional degrees of freedom of massive particles and possible measurements of quantum effects in a gravitationally sensitive system.

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“…The detector efficiency was χ = 0.08(2), as we determined from the collection efficiency of correlated atoms on the opposite sides of scattering halos [51][52][53]. The solid angle in k-space available to detect the depleted tails is limited by the 40mm radius of the circular detection surface.…”

mentioning

confidence: 99%