论文标题
Spin-1/2 Kagome Heisenberg Antiferromagnet的化学
Chemistry of the spin-1/2 kagome Heisenberg antiferromagnet
论文作者
论文摘要
我们认为，理解自旋的基态特性的必要第一步 - $ {\ scriptStyle \ frac {1} {2}}} $ kagome Heisenberg antiferromagnet是对该模型的大量低能能量单元状态的更好理解。对数值工作既准确又可及时的低能状态的描述最终可能比仅知道这些特性具有更大的价值，尤其是当这些特性打开许多小能量的微妙平衡时。我们演示了如何使用旋转串向二聚体状态的基础来实施该程序，尽管提出的其他基础可能具有相同的目的。基础的质量通过其参与所有低能单旋风的参与，而不仅仅是基态。从实验的角度来看，鉴于所涉及的小能量尺度，可以提供所有低能状态的方法比仅优化这些状态的一部分的方法更有坚固的预测。
We believe that a necessary first step in understanding the ground state properties of the spin-${\scriptstyle\frac{1}{2}}$ kagome Heisenberg antiferromagnet is a better understanding of this model's very large number of low energy singlet states. A description of the low energy states that is both accurate and amenable for numerical work may ultimately prove to have greater value than knowing only what these properties are, in particular when these turn on the delicate balance of many small energies. We demonstrate how this program would be implemented using the basis of spin-singlet dimerized states, though other bases that have been proposed may serve the same purpose. The quality of a basis is evaluated by its participation in all the low energy singlets, not just the ground state. From an experimental perspective, and again in light of the small energy scales involved, methods that can deliver all the low energy states promise more robust predictions than methods that only refine a fraction of these states.
