Quantum entanglement and the maximum-entropy states from the Jaynes principle

We show that the Jaynes principle is indeed a proper inference scheme when applied to compound systems and will correctly produce the entangled maximu m entropy states compatible with appropriate data. This is shown in a parti cular example considered recently by Horodecki et al. [Phys. Rev. A 59, 179 9 (1999)], by including the dispersion of the entanglement along with its m ean value as constraints and an application of the uncertainty principle. W e also construct a "thermodynamiclike" description of the entanglement aris ing out of the maximum entropy principle. [S1050-2947(99)00512-0].