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Scalable ion-photon quantum interface based on integrated diffractive mirrors | | M. Ghadimi
; V. Blūms
; B. G. Norton
; P. M. Fisher
; S. C. Connell
; J. M. Amini
; C. Volin
; H. Hayden
; C. S. Pai
; D. Kielpinski
; M. Lobino
; E.W. Streed
; | | Date: |
1 Jul 2016 | | Abstract: | Quantum networking links quantum processors through remote entanglement for
distributed quantum information processing (QIP) and secure long-range
communication. Trapped ions are a leading QIP platform, having demonstrated
universal small-scale processors and roadmaps for large-scale implementation.
Overall rates of ion-photon entanglement generation, essential for remote
trapped ion entanglement, are limited by coupling efficiency into single mode
fibres5 and scaling to many ions. Here we show a microfabricated trap with
integrated diffractive mirrors that couples 4.1(6)% of the fluorescence from a
$^{174}$Yb$^+$ ion into a single mode fibre, nearly triple the demonstrated
bulk optics efficiency. The integrated optic collects 5.8(8)% of the {pi}
transition fluorescence, images the ion with sub-wavelength resolution, and
couples 71(5)% of the collected light into the fibre. Our technology is
suitable for entangling multiple ions in parallel and overcomes mode quality
limitations of existing integrated optical interconnects. In addition, the
efficiencies are sufficient for fault tolerant QIP. | | Source: | arXiv, 1607.0100 | | Services: | Forum | Review | PDF | Favorites | |
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