Theoretical Nuclear Physics

*9800978Baym这个项目继续正在进行的计划，发展核和其他多粒子系统的基本理论，并将其应用于天体物理和凝聚态系统。核子研究强调强子、原子核和核物质的结构；利用高能电子以亚飞秒分辨率绘制这些结构的地图；以及正在发展中的极端相对论重离子碰撞领域，在那里，夸克-胶子等离子体--宇宙中早期出现的一种物质状态--可能会在实验室中重现。特别关注的是发展新的计算技术，以精确计算轻核的结构和反应。天体物理学的项目包括研究中子星中各种物质的组成和相；中子星中超流涡的动力学及其在脉冲星加速中的应用；相变对中子星演化的影响；早期宇宙中的电导率和磁场的产生。相对论多体问题的研究主要集中在电磁等离子体和夸克-胶子等离子体的理论，以及相对论哈密顿对原子核的研究上。凝聚态物理计划的目标是量子液体、动力学响应、量子化涡旋系统、激子和囚禁原子的玻色-爱因斯坦凝聚以及原子团簇理论。

***9800978BaymThis project continues the ongoing program to develop the fundamental theory of nuclear and other many-particle systems, with application to astrophysical and condensed matter systems. Nuclear studies emphasize the structure of hadrons, nuclei and nuclear matter; use of high energy electrons to map these structures with subfemtometer resolution; and the developing area of ultra-relativistic heavy ion collisions where the quark-gluon plasma, a state of matter that occurred early in the universe, may be recreated in laboratory. Special focus is on development of new computational techniques for exact calculations of the structure and reactions of light nuclei. Projects in astrophysics include study of the composition and phases of the various types of matter in neutron stars; dynamics of superfluid vortices in neutron stars, with applications to pulsar speedups; effects of phase transitions on neutron star evolution; the electrical conductivity and generation of magnetic fields in the early universe. Research on relativistic many-body problems focuses on the theory of electromagnetic and quark-gluon plasmas, and on studies of nuclei with relativistic Hamiltonians. The condensed matter physics program aims at theories of quantum liquids, dynamical response, quantized vortex systems, Bose-Einstein condensation of excitons and trapped atoms, and atomic clusters.***