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Entanglement-Assisted Capacity of Quantum Channels with Side Information
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Entanglement-Assisted Capacity of Quantum Channels with Side Information
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Entanglement-assisted communication over a random-parameter quantum channel with either causal or non-causal channel side information (CSI) at the encoder is considered. This describes a scenario where the quantum channel depends on the quantum state of the input environment. While Bob, the decoder, has no access to this state, Alice, the transmitter, performs a sequence of projective measurements on her environment and encodes her message accordingly. Dupuis established the entanglement-assisted capacity with non-causal CSI. Here, we establish characterization in the causal setting, and also give an alternative proof technique and further observations for the non-causal setting.
Forward citations
Cited by 3 Pith papers
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The optimal rate of conditional quantum communication over a broadcast channel is half the maximized quantum conditional mutual information.
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A conditional quantum communication task has capacity equal to half the quantum conditional mutual information, extending the classical Csiszár-Ahlswede key generation result.
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Quantum Action-Dependent Channels
Derives achievable rates for message transmission over quantum action-dependent channels with causal or non-causal side information, including a depolarization memory case study.
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