原子与分子物理学报
原子與分子物理學報
원자여분자물이학보
Journal of Atomic and Molecular Physics
2015年
6期
1059-1063
,共5页
重力场%强磁场%费米气体%稳定性%顺磁性
重力場%彊磁場%費米氣體%穩定性%順磁性
중력장%강자장%비미기체%은정성%순자성
Gravitational field%Strong magnetic field%Fermi gas%Stability%Paramagnetism
基于半经典近似方法,给出重力场和强磁场共存下费米子的能谱。然后由泊松公式导出费米气体的热力学势函数。在此基础上,运用热力学关系式求解低温条件下系统的稳定性及磁化率的解析式,并通过数值模拟分析强磁场背景下重力场对稳定性及顺磁性的影响机制。
基于半經典近似方法,給齣重力場和彊磁場共存下費米子的能譜。然後由泊鬆公式導齣費米氣體的熱力學勢函數。在此基礎上,運用熱力學關繫式求解低溫條件下繫統的穩定性及磁化率的解析式,併通過數值模擬分析彊磁場揹景下重力場對穩定性及順磁性的影響機製。
기우반경전근사방법,급출중력장화강자장공존하비미자적능보。연후유박송공식도출비미기체적열역학세함수。재차기출상,운용열역학관계식구해저온조건하계통적은정성급자화솔적해석식,병통과수치모의분석강자장배경하중력장대은정성급순자성적영향궤제。
Based on the semiclassical approximation, the energy spectrum of single fermion trapped in both grav-itational field and strong magnetic field is given. By using Poisson’ s formula, the thermodynamic potential func-tion of Fermi gas is derived. Furthermore, by using the thermodynamic relationships, the analytical expressions of the stability and magnetic susptibility of the system at low temperature are obtained. The influence mechanism of gravitational field on the thermodynamic properties of the system in the background of strong magnetic field is analysed by numerical simulation.