  We employ the conditional version of sandwiched Tsallis relative entropy to
determine 1:N-1 separability range in the noisy one-parameter families of
pseudopure and Werner-like N-qubit W, GHZ states. The range of the noisy
parameter, for which the conditional sandwiched Tsallis relative entropy is
positive, reveals perfect agreement with the necessary and sufficient criteria
for the separability in the 1:N-1 partition of these one parameter noisy
states.
