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. 3 (Color online) (a) Entanglement entropy and (b) concurrence are plotted as function of $\alpha$ with $R=0.8$. Here LL denotes the Luttinger liquid phase. |
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