Coherent State Assisted Entanglement Generation Between Quantum Memories

We propose protocols for entanglement generation between cavity-assisted quantum memories using weak bosonic coherent-states. Our protocols are shown to be near-deterministic in the low-loss regime and surpass the 50% success rate upper-bound for single-photon qubit encodings even with practical non-idealities, enabling an exponential rate scaling speed-up for the generation of multipartite entanglement.

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Publication Details

Published
2025-01-01
DOI
https://doi.org/10.1364/cleo_fs.2025.ff115_1
Primary Topic
Quantum Information and Cryptography
Type
article
Field-Weighted Citation Impact
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article

Coherent State Assisted Entanglement Generation Between Quantum Memories

Saikat Guha, Prajit Dhara, Chaohan Cui
Quantum Information and Cryptography
article

Coherent State Assisted Entanglement Generation Between Quantum Memories

Saikat Guha, Prajit Dhara, Chaohan Cui
article en

Abstract

We propose protocols for entanglement generation between cavity-assisted quantum memories using weak bosonic coherent-states. Our protocols are shown to be near-deterministic in the low-loss regime and surpass the 50% success rate upper-bound for single-photon qubit encodings even with practical non-idealities, enabling an exponential rate scaling speed-up for the generation of multipartite entanglement.

Openalex Percentile: Top 87%
Quantum Information and Cryptography
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Coherent State Assisted Entanglement Generation Between Quantum Memories — Saikat Guha, Prajit Dhara, et al. · (2025) | TGRS Research Map | TGRS