Exact physical quantities of a competing spin chain in the thermodynamic limit
Exact physical quantities of a competing spin chain in the thermodynamic limit
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DOI：
10.21468/scipostphys.15.2.060
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发表时间：
2022-11
期刊：
影响因子：
5.5
通讯作者：
Pengcheng Lu;Yi Qiao;Junpeng Cao;Wen-Li Yang
中科院分区：
文献类型：
--
作者：
Pengcheng Lu;Yi Qiao;Junpeng Cao;Wen-Li Yang
We study the exact physical quantities of a competing spin chain which contains many interesting and meaningful couplings including the nearest neighbor, next nearest neighbor, chiral three spins, Dzyloshinsky-Moriya interactions and unparallel boundary magnetic fields in the thermodynamic limit. We obtain the density of zero roots, surface energies and elementary excitations in different regimes of model parameters. Due to the competition of various interactions, the surface energy and excited spectrum show many different pictures from those of the Heisenberg spin chain.
