dorsal/arxiv
View SchemaSome Effects of Classical Feedback on the Classical Capacity of a Memoryless Quantum Channel
| Authors | Gleb V. Klimovitch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0403211 |
| URL | https://arxiv.org/abs/quant-ph/0403211 |
Abstract
Classical feedback is defined here as the knowledge by the transmitter of the quantum state of the qubit received by the receiver. Such classical feedback doubles capacities of certain memoryless quantum channels without preexisting entanglement between transmitter and receiver. The increase in capacity, which is absent on classical memoryless channels, occurs because we can transform an entangled qubit pair into any other entangled state by applying a unitary operator to only one of the qubits.
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"abstract": "Classical feedback is defined here as the knowledge by the transmitter of the\nquantum state of the qubit received by the receiver. Such classical feedback\ndoubles capacities of certain memoryless quantum channels without preexisting\nentanglement between transmitter and receiver. The increase in capacity, which\nis absent on classical memoryless channels, occurs because we can transform an\nentangled qubit pair into any other entangled state by applying a unitary\noperator to only one of the qubits.",
"arxiv_id": "quant-ph/0403211",
"authors": [
"Gleb V. Klimovitch"
],
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"quant-ph"
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"title": "Some Effects of Classical Feedback on the Classical Capacity of a Memoryless Quantum Channel",
"url": "https://arxiv.org/abs/quant-ph/0403211"
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