A faithful solid-state spin-wave quantum memory for polarization qubits

Jin, Ming; Ma, You-Zhi; Zhou, Zong‐Quan; Li, Chuan‐Feng; Guo, Guang‐Can

doi:10.1016/j.scib.2022.01.019

Cited by 12 publications

(5 citation statements)

References 16 publications

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“…In 2021, the experimental demonstration of heralded entanglement distribution between absorptive quantum memories were reported [92]. Recently, a spin-wave solid-state quantum memory for photonic polarization qubits with the single piece of crystal in a single-pass configuration was demonstrated, which has a storage process fidelity of 91.9±2.4% for single-photon level weak coherent pulses [93]. Based on these attractive progresses, our protocol may be realized in the near future.…”

Section: Discussionmentioning

confidence: 91%

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Multiple-participant measurement-device-independent quantum secret sharing protocol based on entanglement swapping

Zhang¹,

Zhou²,

Zhong³

et al. 2023

Laser Phys. Lett.

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Quantum secret sharing (QSS) is a multi-party quantum communication mode, which allows the dealer to split a key into several parts and send each part of a key to a participant. The participants can obtain the key only by cooperation. Entanglement swapping is a promising method to construct the entanglement channel. In the paper, we propose a multiple-participant measurement-device-independent QSS protocol based on entanglement swapping. All the measurement tasks are handed over to an untrusted measurement party, so that our protocol can resist all possible attacks from imperfect measurement devices. Our protocol requires the linear-optical Bell state analysis, which is easy to operate. Our protocol has application potential in the future quantum communication field.

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Section: Discussionmentioning

confidence: 91%

“…On the other hand, our MDI-QSS requires the quantum memory. During past few years, the quantum memory has achieved great progress in experiment [89][90][91][92][93]. In 2016, the experimental demonstration of a quantum memory for quantum bits encoded in orbital angular momentum degree of freedom was reported [89].…”

Section: Discussionmentioning

confidence: 99%

Multiple-participant measurement-device-independent quantum secret sharing protocol based on entanglement swapping

Zhang¹,

Zhou²,

Zhong³

et al. 2023

Laser Phys. Lett.

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show abstract

“…While systems employing cold atoms [6][7][8] and rare-earth atoms 5 demonstrate excellent memory performance characterized by long storage times, high fidelity, and efficiency, there is a growing interest in the scientific community in developing of QMs using warm atomic vapors 11,13,14,21,22 . This increasing interest can be primarily attributed to the simplicity of their technology, making them particularly appealing for real-world applications.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of light storage in antirelaxation-coated and buffer-gas-filled alkali vapor cells

Đujić,

Buhin,

Šantić

et al. 2024

Preprint

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We explore light storage in antirelaxation-coated and buffer-gas-filled alkali vapor cells, employing electromagnetically induced transparency (EIT) in warm rubidium vapor.We conduct a comparative study of light storage performance under identical experimental conditions for these two cell types. Using a buffer-gas-filled cell resulted in approximately a tenfold improvement in memory efficiency and storage time compared to antirelaxation-coated cells.Moreover, we demonstrate that memory efficiency can be further enhanced by choosing a near-resonant EIT $\Lambda$-scheme over a resonant one. Our findings provide valuable insights for optimizing light storage, thereby contributing to the development of field-deployable quantum memories.

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“…While systems employing cold atoms 5 – 7 and rare-earth atoms 8 demonstrate excellent memory performance characterized by long storage times, high fidelity, and efficiency, there is a growing interest in the scientific community in developing of QMs using warm atomic vapors 9 – 15 . This increasing interest can be primarily attributed to the simplicity of their technology, making them particularly appealing for real-world applications.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of light storage in antirelaxation-coated and buffer-gas-filled alkali vapor cells

Đujić,

Buhin,

Šantić

et al. 2024

Sci Rep

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We explore light storage in antirelaxation-coated and buffer-gas-filled alkali vapor cells, employing electromagnetically induced transparency (EIT) in warm rubidium vapor. We conduct a comparative study of light storage performance under identical experimental conditions for these two cell types. Using a buffer-gas-filled cell resulted in approximately a tenfold improvement in memory efficiency and storage time compared to antirelaxation-coated cells. Moreover, we demonstrate that memory efficiency can be further enhanced by choosing a near-resonant EIT $$\Lambda$$ Λ -scheme over a resonant one. Our findings provide valuable insights for optimizing light storage, thereby contributing to the development of field-deployable quantum memories.

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A faithful solid-state spin-wave quantum memory for polarization qubits

Cited by 12 publications

References 16 publications

Multiple-participant measurement-device-independent quantum secret sharing protocol based on entanglement swapping

Multiple-participant measurement-device-independent quantum secret sharing protocol based on entanglement swapping

Comparative analysis of light storage in antirelaxation-coated and buffer-gas-filled alkali vapor cells

Comparative analysis of light storage in antirelaxation-coated and buffer-gas-filled alkali vapor cells

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