Conserved currents for Mobius Domain Wall Fermions

Conserved currents for Mobius Domain Wall Fermions
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莫比乌斯域壁费米子的守恒电流

DOI:
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发表时间:
2014
期刊:
arXiv: High Energy Physics - Lattice
影响因子:
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通讯作者:
P. Boyle
P. Boyle
中科院分区:
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文献类型:
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作者:
P. Boyle

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我们推导了精确守恒的向量和几乎守恒的轴向电流,用于具有一般莫比乌斯核的重叠算子的有理近似。该方法保持了明显的厄米性,并且允许在求解通常的 5d 方程组后无需额外成本即可构造电流的矩阵元素,类似于 Furman 和 Shamir 用于域壁费米子的原始方法。
We derive the exactly conserved vector, and almost conserved axial currents for rational approximations to the overlap operator with a general Mobius kernel. The approach maintains manifest Hermiticity, and allows matrix elements of the currents to be constructed at no extra cost after solution of the usual 5d system of equations, similar to the original approach of Furman and Shamir for domain wall Fermions.