The quadrupole moment tensor Q is a rank-two tensor—3×3 matrix. There are several definitions, but it is normally stated in the traceless form (i.e.
Q
x
x
+
Q
y
y
+
Q
z
z
=
0
).
The quadrupole moment tensor Q is a rank-two tensor—3×3 matrix. There are several definitions, but it is normally stated in the traceless form (i.e.
Q
x
x
+
Q
y
y
+
Q
z
z
=
0
).
