  We study the quantum correlations between the two remote qubits (sender and
receiver) connected by the transmission line (homogeneous spin-1/2 chain)
depending on the parameters of the sender's and receiver's initial states
(control parameters).
  We consider two different measures of quantum correlations: the entanglement
(a traditional measure) and the informational correlation (based on the
parameter exchange between the sender and receiver).
  We find the domain in the control parameter space yielding (i) zero
entanglement between the sender and receiver during the whole evolution period
and (ii) non-vanishing informational correlation between the sender and
receiver, thus showing that the informational correlation is responsible for
the remote state creation. Among the control parameters, there are the strong
parameters (which strongly effect the values of studied measures) and the weak
ones (whose effect is negligible), therewith the eigenvalues of the initial
state are given a privileged role. We also show that the problem of small
entanglement (concurrence) in quantum information processing is similar (in
certain sense) to the problem of small determinants in linear algebra. A
particular model of 40-node spin-1/2 communication line is presented.
