Topological Solitons and Non-perturbative Effects in Field Theory

场论中的拓扑孤子和非微扰效应

基本信息

批准号：
16F16322
负责人：
新田宗土
金额：
$ 1.41万
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：
2016
资助国家：
日本
起止时间：
2016-11-07 至 2019-03-31
项目状态：
已结题

项目摘要

Quark-hadron continuity was proposed as crossover between hadronic matter and quark matter without a phase transition, based on the matching of the symmetry and excitations in both phases. In the simplest case, it connects hyperon matter and the color-flavor-locked (CFL) phase exhibiting color superconductivity. Recently, it was suggested that one hadronic superfluid vortex in hyperon matter could be connected to one non-Abelian vortex (color magnetic flux tube) in the CFL phase. On contrary to their proposal, we showed that three hadronic superfluid vortices must combine with three non-Abelian vortices with different colors with the total color magnetic fluxes canceled out, where the junction is called a colorful boojum.We discussed the effect of a strong magnetic field on neutron 3P2 superfluidity. We derived the Ginzburg-Landau equation in the path-integral formalism up to the next-to-leading order in the expansion of the magnetic field B. We determined the (T,B) phase diagram with temperature T, comprising three phases: the uniaxial nematic (UN) phase for B=0, D2-biaxial nematic (BN) and D4-BN phases in finite B and strong B such as magnetars, respectively, where D2 and D4 are dihedral groups. We presented the thermodynamic properties, such as heat capacities and spin susceptibility, and found that the spin susceptibility exhibits anisotropies in the UN, D2-BN, and D4-BN phases.

基于两个阶段中对称性和激发的匹配，提出了夸克 - 赫德隆的连续性，即在没有相变的情况下，无需相变。在最简单的情况下，它连接了超子物质和表现出颜色超导性的颜色味锁（CFL）相。最近，有人提出，超声物质中的一个辐射超流体涡流可以连接到CFL相中的一个非亚伯涡流（颜色磁通管）。与他们的提议相反，我们表明三个Hadronic超流体涡旋必须与三个具有不同颜色的非亚伯涡旋结合，并取消了总颜色磁通量，其中该连接被称为五颜六色的boojum。我们讨论了强磁场对中子3p2超球的效果。 We derived the Ginzburg-Landau equation in the path-integral formalism up to the next-to-leading order in the expansion of the magnetic field B. We determined the (T,B) phase diagram with temperature T, comprising three phases: the uniaxial nematic (UN) phase for B=0, D2-biaxial nematic (BN) and D4-BN phases in finite B and strong B such as magnetars, respectively, where D2和D4是二面体。我们介绍了热力学特性，例如热能和自旋敏感性，发现自旋敏感性在联合国，D2-BN和D4-BN相中表现出各向异性。

项目成果

期刊论文数量（0）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Phase structure of neutron P23 superfluids in strong magnetic fields in neutron stars

中子星强磁场中中子P23超流体的相结构

DOI：
10.1103/physrevc.99.035213
发表时间：
2019
期刊：
Physical Review C
影响因子：
3.1
作者：
Yasui Shigehiro;Chatterjee Chandrasekhar;Nitta Muneto
通讯作者：
Nitta Muneto

Superfluid Vortices in the Core of the Neutron Stars

中子星核心的超流体涡旋

DOI：
发表时间：
2018
期刊：
影响因子：
0
作者：
安井繁宏;Chandrasekhar Chatterjee;新田宗土;Chandrasekhar Chatterjee;Chandrasekhar Chatterjee;Chandrasekhar Chatterjee;Chandrasekhar Chatterjee
通讯作者：
Chandrasekhar Chatterjee

Stable non-Abelian semi-superfluid vortices in dense QCD

稠密 QCD 中的稳定非阿贝尔半超流涡旋