Anomalous Casimir effect in axion electrodynamics

轴子电动力学中的反常卡西米尔效应

• 批准号: 20J20974
• 负责人: QIU Zebin
• 金额: $ 1.6万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2020
• 资助国家: 日本
• 起止时间: 2020-04-24 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20J20974/
• 关键词: QCD; Effective Theory; Topology; Chiral Symmetry; Phase Diagram; Skyrme Model; Chiral Soliton Lattice; Topological Soliton; Casimir Effect; Chiral Anomaly; Axion Electrodynamics

I accomplished two studies on the topological phases of low-energy dense QCD.The first was a magnetized Skyrmion system describing the hadron properties altered by an external magnetic field. Our results hint at the enhancement of the baryonic confinement induced by the magnetic field, in an original approach.The second was a further investigation of a competing mesonic phase (against baryonic phase) under a strong magnetic field, namely the chiral soliton lattice. We innovatively encompass the eta meson into the chiral perturbation theory which was usually in terms of only pions. We found the ground state given such a U(2) field is a mixed soliton lattice or quasicrystal with nontrivial windings of both neutral pion and eta, which could be the first incarnation of a quasicrystal in QCD.

我完成了两个关于低能稠密QCD拓扑相的研究：第一个是磁化Skyrmion系统，它描述了强子的性质被外磁场改变。我们的结果暗示了磁场引起的重子禁闭的增强，这是一种新颖的方法。第二种方法是进一步研究强磁场下的竞争介子相（对重子相），即手征孤子晶格。我们创新性地将η介子纳入到通常只考虑π介子的手征微扰理论中。我们发现在这样一个U（2）场的情况下，基态是一个具有非平凡中性π和η两种绕组的混合孤子晶格或准晶，这可能是QCD中准晶的第一个体现。

项目成果

Further Study on Chiral Soliton Lattice

手性孤子晶格的进一步研究

• 发表时间: 2023
• 作者: 榎戸渉吾;Zebin Qiu
• 通讯作者: Zebin Qiu

Chiral torsional effect with finite temperature, density, and curvature

• DOI: 10.1103/physrevd.102.016001
• 发表时间: 2020-04
• 期刊: Physical Review D
• 影响因子: 5
• 作者: S. Imaki;Z. Qiu

Quasicrystals in QCD

• DOI: 10.1007/jhep05(2023)170
• 发表时间: 2023-04
• 期刊: Journal of High Energy Physics
• 影响因子: 5.4
• 作者: Z. Qiu;M. Nitta

Magnetic enhancement of baryon confinement modelled via a deformed Skyrmion

通过变形斯格明子模拟的重子约束的磁增强

• 发表时间: 2023
• 期刊: Physics Letter B
• 作者: Shi Chen;Kenji Fukushima and Zebin Qiu
• 通讯作者: Kenji Fukushima and Zebin Qiu