标题： 致密磁化自旋物质在粒子物理与天体粒子物理中的角色：边界的影响 显示英文标题

标题： Hot dense magnetized spinor matter in particle and astroparticle physics: the role of boundaries

摘要： 我们研究了边界对处于强磁场中的高温稠密相对论旋量物质的手征效应的影响，该磁场与边界正交。采用了一组最一般的边界条件来确保物质被限制在边界内。我们发现手征磁效应消失，而手征分离效应仍然存在，并且变得依赖于温度和边界条件的选择。随着温度从零增加到较大值，作为化学势函数的手征分离效应的阶梯状行为变为平滑行为。边界条件的选择可以放大或减弱手征分离效应；特别是，如果温度有限，则即使在零化学势下，该效应也可以持续存在。这表明边界对于具有高温稠密磁化旋量物质的物理系统（即致密天体物理对象（中子星和磁星）、相对论重离子碰撞以及被称为狄拉克和外尔半金属的新材料）具有重要作用。 显示英文摘要

摘要： We study the influence of boundaries on chiral effects in hot dense relativistic spinor matter in a strong magnetic field which is orthogonal to the boundaries. The most general set of boundary conditions ensuring the confinement of matter within the boundaries is employed. We find that the chiral magnetic effect disappears, whereas the chiral separation effect stays on, becoming dependent on temperature and on a choice of boundary conditions. As temperature increases from zero to large values, a stepped-shape behaviour of the chiral separation effect as a function of chemical potential is changed to a smooth one. A choice of the boundary condition can facilitate either amplification or diminution of the chiral separation effect; in particular, the effect can persist even at zero chemical potential, if temperature is finite. This points at a significant role of boundaries for physical systems with hot dense magnetized spinor matter, i.e. compact astrophysical objects (neutron stars and magnetars), relativistic heavy-ion collisions, novel materials known as the Dirac and Weyl semimetals.