Fully quantum source compression with a quantum helper
- Publication Type:
- Conference Proceeding
- Proceedings of the 2015 IEEE Information Theory Workshop - Fall (ITW), 2015, pp. 307 - 311
- Issue Date:
We study source compression with a helper in the fully quantum regime, extending our earlier result on classical source compression with a quantum helper [arXiv:1501.04366, 2015]. We characterise the quantum resources involved in this problem, and derive a single-letter expression of the achievable rate region when entanglement assistance is available. The direct coding proof is based on a combination of two fundamental protocols, namely the quantum state merging protocol and the quantum reverse Shannon theorem (QRST). This result connects distributed source compression with the QRST protocol, a quantum protocol that consumes noiseless resources to simulate a noisy quantum channel.
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