Figure 3

Wave function of plasmon in momentum space. Squared modulus of plasmon wave function ${\left|C_{\mathbf{pq}}^{{\gamma }^{\prime }\gamma }\right|}^2$ on the plane of the hole momentum p at q = 0.4p_F. Top row: intraband channel ${\left|C_{\mathbf{pq}}^{++}\right|}^2$ at r_s = 0.09 (a) and r_s = 8.8 (b). Bottom row: interband channel ${\left|C_{\mathbf{pq}}^{+-}\right|}^2+{\left|C_{\mathbf{pq}}^{-+}\right|}^2$ at r_s = 0.09 (c) and r_s = 8.8 (d).