  We are interested in black holes in Loop Quantum Gravity (LQG). We study the
simple model of static black holes: the horizon is made of a given number of
identical elementary surfaces and these small surfaces all behaves as a spin-s
system accordingly to LQG. The chosen spin-s defines the area unit or area
resolution, which the observer uses to probe the space(time) geometry. For
s=1/2, we are actually dealing with the qubit model, where the horizon is made
of a certain number of qubits. In this context, we compute the black hole
entropy and show that the factor in front of the logarithmic correction to the
entropy formula is independent of the unit s. We also compute the entanglement
between parts of the horizon. We show that these correlations between parts of
the horizon are directly responsible for the asymptotic logarithmic
corrections. This leads us to speculate on a relation between the evaporation
process and the entanglement between a pair of qubits and the rest of the
horizon. Finally, we introduce a concept of renormalisation of areas in LQG.
