Phase Diagram of the Spin-1/2 Heisenberg Alternating Chain in a Magnetic Field *
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Phase Diagram of the Spin-1/2 Heisenberg Alternating Chain in a Magnetic Field * |
| Wei-Xia Chen,Jie Ren,Wen-Long You,Xiang Hao,Yin-Zhong Wu |
| Fig. 2 (Color online) Ground state fidelity per site $d(B_1,B_2)$ for the model with different alternating interactions (a) $\lambda=0.5$ (b) $\lambda=-1$. |
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