2005/11/30 by Xiaoyu Chen, Xiao-yu Chen, Chen, Xiao-yu
Computer Science · Engineering · Physics and Astronomy · #Chaos-based Image/Signal Encryption #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Physics (quant-ph) #Wireless Communication Security Techniques #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0511269
6 page, 1 figure
arxiv created 2005/11/30 · openalex publication_date 2005/11/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Quantum random variable, distortion operator are introduced based on canonical operators. As the lower bound of rate distortion, the entanglement information rate distortion is achieved by Gaussian map for Gaussian source. General Gaussian maps are further reduced to unitary transformations and additive noises from the physical meaning of distortion. The entanglement information rate distortion function then are calculated for one mode Gaussian source. The rate distortion is accessible at zero distortion point. For pure state, the rate distortion function is always zero. In contrast to the distortion defined via fidelity, our definition of the distortion makes it possible to calculate the entanglement information rate distortion function for Gaussian source.