Quantum Field Theories in the Presence of External Fields

存在外部场的量子场论

• 批准号: 0070986
• 负责人: Vivian Incera
• 金额: $ 12万
• 依托单位: SUNY College at Fredonia
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0070986&HistoricalAwards=false
• 关键词: Quantum; Field; Theories; Presence; External

0070986Incera This three-year research project will continue the investigations of the PIs on the area of Quantum Field Theories in the presence of external magnetic fields, helping them to widen their international scientific collaboration, and maintaining their commitment to undergraduate research. Quantum Field Theories in the presence of external fields has long been a topic of intensive study in theoretical physics with applications to condensed matter physics, astrophysics and cosmology. In the present project, the PI's will use non-perturbative techniques to study the influence of external magnetic fields on various physical situations: (1) the generation of the baryon asymmetry (the fact that there are more particles than antiparticles in the universe) within the so called Standard Model of Elementary Particles, (2) the behavior of the thermal conductivity in high -T superconductors as a function of the applied magnetic field, and (3) the propagation of neutrinos in neutron stars and during the early universe evolution.

0070986 Incera这个为期三年的研究项目将继续在存在外部磁场的量子场论领域的PI调查，帮助他们扩大国际科学合作，并保持他们对本科研究的承诺。外场作用下的量子场论一直是理论物理中深入研究的课题，并在凝聚态物理、天体物理和宇宙学中得到应用。 在本项目中，PI将使用非微扰技术来研究外部磁场对各种物理情况的影响：（1）重子不对称性的产生（宇宙中粒子比反粒子多的事实）在所谓的基本粒子标准模型中，（2）高温超导体的热导率随外加磁场的变化;（3）中子星和宇宙早期演化过程中中微子的传播。