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arXiv 1104.2485cond-mat.str-elhep-th
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从拓扑绝缘体到超导体和禁闭

From topological insulators to superconductors and Confinement

M. Cristina Diamantini, Pasquale Sodano, Carlo A. Trugenberger

摘要:

3D中的拓扑物质的特征在于在其长距离有效作用中存在拓扑BF项。我们表明,在3D中,有另一个边缘项,必须添加到动作,以充分确定模型的物理内容。量子相位结构由三个参数决定,这三个参数驱动拓扑缺陷的凝聚:BF耦合,材料的介电常数和磁导率。对于介电常数和磁导率的中间水平,材料是拓扑绝缘体。然而,我们预测,新的物质状态时,这些参数的临界值:拓扑超导体时,电容率增加,磁导率降低和电荷限制阶段在相反的情况下,低的电容率和高的磁导率。合成拓扑物质可以被制造为约瑟夫森结的3D阵列。

英文摘要:

Topological matter in 3D is characterized by the presence of a topological BF term in its long-distance effective action. We show that, in 3D, there is another marginal term that must be added to the action in order to fully determine the physical content of the model. The quantum phase structure is governed by three parameters that drive the condensation of topological defects: the BF coupling, the electric permittivity and the magnetic permeability of the material. For intermediate levels of electric permittivity and magnetic permeability the material is a topological insulator. We predict, however, new states of matter when these parameters cross critical values: a topological superconductor when electric permittivity is increased and magnetic permeability is lowered and a charge confinement phase in the opposite case of low electric permittivity and high magnetic permeability. Synthetic topological matter may be fabricated as 3D arrays of Josephson junctions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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