2013/10/22 by Christopher King, King, Christopher
Computer Science · Neuroscience · #Cellular Automata and Applications #Computability, Logic, AI Algorithms #FOS: Physical sciences #Neural dynamics and brain function #Quantum Computing Algorithms and Architecture #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.1310.5990
openalex publication_date 2013/10/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
It is known that the minimal output entropy is additive for any product of\nentanglement breaking (EB) channels. The same is true for the Renyi entropy,\nwhere additivity is equivalent to multiplicativity of the 1 \→ q\nnorm for all q \≥ 1. In this paper we consider the related question of\nmultiplicativity of the 2 \→ q norm for entanglement breaking\nchannels. We prove that multiplicativity holds in this case for certain classes\nof EB channels, including both the CQ and QC channels.\n