Publication: Geometric Phases and Competing Orders in Two Dimensions
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Date
2011
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American Physical Society
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Citation
Fu, Liang, Subir Sachdev, and Cenke Xu. 2011. Geometric phases and competing orders in two dimensions. Physical Review B 83(16): 165123.
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Abstract
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.
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Keywords
strongly correlated electrons
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