Fig. 3: Three-channel cloud shells and their thermal evaporation.
From: Hierarchical entanglement shells of multichannel Kondo clouds
The three-channel Kondo (3CK) model of couplings J1,2 = J + (δJ)/2 and J3 = J − δJ is considered. δJ is the channel anisotropy. a–d The phase diagram of the model, shown in a, is composed of the local moment (LM), single-channel Kondo (1CK), two-channel Kondo (2CK), and three-channel Kondo (3CK) phases. At a point of δJ < 0 and zero temperature T = 0 marked by the red star in the phase diagram a, the cloud distribution is drawn in b, the log–log plot of numerical renormalization group (NRG) results of the distribution ρ1(L) is in c, and the log–log plot of ρ3(L) is in d. ρ2 is identical to ρ1. In b, the core, 1CK, 3CK, and non-Kondo Fermi liquid (FL) shells are identified. TK is the Kondo temperature, T* is the crossover temperature, ξK is the Kondo length, and ξ* is the crossover length. e–h The same plots, but at a point of δJ > 0 and T = 0. i–l The same plots, but at a point of δJ > 0 and T = T*. m–p The same plots, but at a point of δJ > 0 and T = TK. As temperature increases, the outer shells disappear one by one.
