The formation of WMs (in the case of asymmetric connements) is graphically illustrated through the charge densities, which are displayed in Fig. . For the reader's convenience and for helping with establishing the correspondence between the charge densities in Fig. State no. 9 at ε = 1.60 meV with both electrons in the low-energy valley deviates from a pure (2,0) conguration, as is apparent from the density in Fig. (g). Indeed, at this point, state no. 9 starts forming an avoided crossing with state no. 5 [an (1,1) state with the same spin-isospin quantum numbers (T s 0 T v + )], and thus it be- comes a superposition of both a (2,0) and an (1,1) conguration; this behavior is denoted with a * as a superscript. Note that the (2,0) component of state no.