论文标题
广义的真实空间Chern数字公式和纠缠哈密顿
Generalized Real-space Chern Number Formula and Entanglement Hamiltonian
论文作者
论文摘要
我们概括了一个真正的空间Chern号码公式,以使自由费用的差距为更高的订单。使用广义公式,我们证明了最新的建议在非相互作用的费米子的特殊情况下,通过纠缠汉密尔顿从基态提取热和电力厅电导,提供了物质阶段中纠缠与拓扑之间的联系的具体示例。
We generalize a real-space Chern number formula for gapped free fermions to higher orders. Using the generalized formula, we prove recent proposals for extracting thermal and electric Hall conductance from the ground state via the entanglement Hamiltonian in the special case of non-interacting fermions, providing a concrete example of the connection between entanglement and topology in quantum phases of matter.