Geometric phases and competing orders in two dimensions

Liang Fu; Subir Sachdev; Cenke Xu

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Geometric phases and competing orders in two dimensions

机译：二维的几何阶段和竞争订单

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We discuss the problem of characterizing "quantum-disordered" ground states, obtained upon loss of antiferromagnetic order on general lattices in two spatial dimensions, with arbitrary electronic band structure. A key result is the response in electron bilinears to the skyrmion density in the local antiferromagnetic order, induced by geometric phases. We also discuss the connection to topological terms obtained under situations where the electronic spectrum has a Dirac form.

机译：我们讨论了表征“量子无序”基态的问题，该基态是在具有任意电子能带结构的两个空间维上的一般晶格上反铁磁阶数丢失时获得的。一个关键的结果是电子双线性对几何相引起的局部反铁磁阶数的天敌离子密度的响应。我们还讨论了在电子光谱具有狄拉克形式的情况下获得的拓扑术语的联系。

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《Physical review》 |2011年第16期|p.165123.1-165123.16|共16页
作者
Liang Fu; Subir Sachdev; Cenke Xu;
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Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

Department of Physics, University of California, Santa Barbara, California 93106, USA;

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机译：几何阶段和二维竞争订单

Geometric phases and competing orders in two dimensions

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