Monogamous nature of symmetric
N
-qubit states of the W class: Concurrence and negativity tangle
*
Geetha P. J.
a)
, Yashodamma K. O.
a)
, Sudha
a),
b)
Plot of N
A
1
A
k
versus θ in the interval from 0 to 2 π for arbitrary N -qubit state belonging to the W class.