2 problems

Let $\rho$ range over qubit states parametrized by a Bloch-vector radius $r\in[0,1]$, let $\zeta_n(u)$ be the corresponding $n$-copy quantum coding state in the restricted family…

Let the quantum Jeffreys' prior for the qubit density matrices be the normalized prior … The classical Jeffreys' prior is known to yield the asymptotic common minimax and maximin r…