2003/04/09 by Subhash Kak, Kak, Subhash
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0304060
4 pages, with additional discussion
arxiv created 2003/05/06 · arxiv updated 2009/12/01
The notion of quantum information related to the two different perspectives of the global and local states is examined. There is circularity in the definition of quantum information because we can speak only of the information of systems that have been specifically prepared. In particular, we examine the final state obtained by applying unitary transformations on a single qubit that belongs to an entangled pair.