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arXiv 1010.4418hep-thcond-mat.mes-hall
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一族非对易几何

A Family of Non-commutative geometries

Debabrata Sinha, Pulak Ranjan Giri

摘要:

结果表明,量子霍尔系统的非对易性可以得到修正。相应的哈密顿量的自伴扩张导致一族由自伴扩张参数标记的非对易几何。我们明确地执行一个精确的计算,使用奇异的相互作用,并表明,当投影到一定的朗道水平,投影坐标的紧急非交换几何属于一个参数的家庭。通过适当地选择自伴扩展参数的值,有可能得到分数量子霍尔效应的填充分数。

英文摘要:

It is shown that the non-commutativity in quantum Hall system may get modified. The self-adjoint extension of the corresponding Hamiltonian leads to a family of non-commutative geometries labeled by the self-adjoint extension parameters. We explicitly perform an exact calculation using a singular interaction and show that, when projected to a certain Landau level, the emergent non-commutative geometries of the projected coordinates belong to a one parameter family. There is a possibility of obtaining the filling fraction of fractional quantum Hall effect by suitably choosing the value of the self-adjoint extension parameter.

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