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December 21, 20250 citationsOpen Access

Limits on EPR Pair Generation in Noisy Quantum Broadcast Channels

Efficiently Computable Limits on EPR Pair Generation in Quantum Broadcast Channels

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Authors

PHPatrick HaydenDLDebbie LeungHRHjalmar Rall

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Overview

Analysis shows that codes for EPR pair generation in quantum broadcast channels have defined limits, implying potential improvements in entanglement fidelity.

Key Points

  • This research examines EPR pair generation and quantum codes within noisy quantum broadcast channels.
  • Analyzed causal constraints and temporal relationships among parties in a tripartite setting.
  • Developed semidefinite programs to compute entanglement fidelity.
  • Established converse bounds for quantum broadcast channel capacity.
  • Identified limits in EPR pair generation for quantum broadcast channels.
  • Proposed strong and weak converse bounds for channel capacity.
  • Demonstrated improvements in PPT-preserving entanglement combing schemes.
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Cite This Study

Hayden et al. (2025) studied this question.

synapsesocial.com/papers/69473b64db9c958d0dfca792https://doi.org/10.48550/arxiv.2505.07218
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