| Oscillatory behavior of the domain wall fermions revisited |
| Liang J(梁剑); Chen Y(陈莹) ; Liang, J; Chen, Y; Gong, M; Gui, LC; Liu, KF; Liu, ZF; Yang, YB; Gui LC(桂龙成); Liu CF(刘朝峰); Yang YB(杨一玻)
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| 2014
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| 发表期刊 | PHYSICAL REVIEW D
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| 卷号 | 89期号:9页码:94507 |
| 摘要 | In the generic domain wall fermion formulation of chiral fermions on the lattice, the zero modes of the four-dimensional Wilson fermion operator with the negative mass parameter -M-5 introduce unphysical massive modes propagating in the four-dimensional spacetime. In the free fermion case, the pole mass of this kind of unphysical modes is given by (E) over bar = ln(1-M-5), which acquires an imaginary part, i pi, when M-5 > 1 and results in an oscillatory behavior of the domain wall fermion propagator in time. The existence of the unphysical modes in the presence of gauge fields is investigated in the mean field approximation, and their physical consequences are discussed. In addition, we also give a semiquantitative criterion for tuning M-5 in the realistic numerical study. |
| 学科领域 | Astronomy & Astrophysics; Physics
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| DOI | 10.1103/PhysRevD.89.094507
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| 收录类别 | SCI
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| WOS记录号 | WOS:000336651300004
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/225272
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| 专题 | 理论物理室
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推荐引用方式
GB/T 7714 |
Liang J,Chen Y,Liang, J,et al. Oscillatory behavior of the domain wall fermions revisited[J]. PHYSICAL REVIEW D,2014,89(9):94507.
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| APA |
梁剑.,陈莹.,Liang, J.,Chen, Y.,Gong, M.,...&杨一玻.(2014).Oscillatory behavior of the domain wall fermions revisited.PHYSICAL REVIEW D,89(9),94507.
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| MLA |
梁剑,et al."Oscillatory behavior of the domain wall fermions revisited".PHYSICAL REVIEW D 89.9(2014):94507.
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