Quantum conditional entropy
= Quantum conditional entropy
{title2=$H(A|B)_\rho$}
{wiki}
The quantum conditional entropy is $H(A|B)_\rho=S(\rho_{AB})-S(\rho_B)$. Unlike its classical counterpart, it may be negative.
= Quantum conditional entropy
{title2=$H(A|B)_\rho$}
{wiki}
The quantum conditional entropy is $H(A|B)_\rho=S(\rho_{AB})-S(\rho_B)$. Unlike its classical counterpart, it may be negative.