(4,1)-Quantum Random Access Coding Does Not Exist

Masahito Hayashi, Kazuo Iwama, Harumichi Nishimura +2

An (n,1,p)-Quantum Random Access (QRA) coding, introduced by Ambainis, Nayak, Ta-shma and Vazirani in ACM Symp. on Theory of Computing 1999, is the following communication system:…