Fast photon-mediated entanglement of continuously-cooled trapped ions for quantum networking

Fuente: arXiv
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Autores principales: O'Reilly, Jameson, Toh, George, Goetting, Isabella, Saha, Sagnik, Shalaev, Mikhail, Carter, Allison, Risinger, Andrew, Kalakuntla, Ashish, Li, Tingguang, Verma, Ashrit, Monroe, Christopher
Formato: Preprint
Publicado: 2024
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author O'Reilly, Jameson
Toh, George
Goetting, Isabella
Saha, Sagnik
Shalaev, Mikhail
Carter, Allison
Risinger, Andrew
Kalakuntla, Ashish
Li, Tingguang
Verma, Ashrit
Monroe, Christopher
author_facet O'Reilly, Jameson
Toh, George
Goetting, Isabella
Saha, Sagnik
Shalaev, Mikhail
Carter, Allison
Risinger, Andrew
Kalakuntla, Ashish
Li, Tingguang
Verma, Ashrit
Monroe, Christopher
contents We entangle two co-trapped atomic barium ion qubits by collecting single visible photons from each ion through in-vacuo 0.8 NA objectives, interfering them through an integrated fiber-beamsplitter and detecting them in coincidence. This projects the qubits into an entangled Bell state with an observed fidelity lower bound of F > 94%. We also introduce an ytterbium ion for sympathetic cooling to remove the need for recooling interruptions and achieve a continuous entanglement rate of 250 1/s.
format Preprint
id arxiv_https___arxiv_org_abs_2404_16167
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Fast photon-mediated entanglement of continuously-cooled trapped ions for quantum networking
O'Reilly, Jameson
Toh, George
Goetting, Isabella
Saha, Sagnik
Shalaev, Mikhail
Carter, Allison
Risinger, Andrew
Kalakuntla, Ashish
Li, Tingguang
Verma, Ashrit
Monroe, Christopher
Quantum Physics
Atomic Physics
We entangle two co-trapped atomic barium ion qubits by collecting single visible photons from each ion through in-vacuo 0.8 NA objectives, interfering them through an integrated fiber-beamsplitter and detecting them in coincidence. This projects the qubits into an entangled Bell state with an observed fidelity lower bound of F > 94%. We also introduce an ytterbium ion for sympathetic cooling to remove the need for recooling interruptions and achieve a continuous entanglement rate of 250 1/s.
title Fast photon-mediated entanglement of continuously-cooled trapped ions for quantum networking
topic Quantum Physics
Atomic Physics
url https://arxiv.org/abs/2404.16167