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arXiv math-ph/0507049math-phcond-mat.stat-mechmath.MP
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稀费米气体的基态能量

Ground-State Energy of a Dilute Fermi Gas

Elliott H. Lieb, Robert Seiringer, Jan Philip Solovej

摘要:

最近的事态发展,在物理学的低密度被困气体,值得验证旧的,众所周知的结果,而似是而非的,是基于微扰理论和假设的赝势。我们使用和扩展最近开发的技术,给出一个严格的推导出的渐近公式的$N$费米子相互作用的稀释气体的基态能量与一个短距离,正电位的散射长度$a$。对于自旋为1/2的费米子,这是$E \sim E^0 + (\hbar^2/2m) 2 πN ρa$,其中$E^0$是非相互作用系统的能量,$ρ$是密度。

英文摘要:

Recent developments in the physics of low density trapped gases make it worthwhile to verify old, well known results that, while plausible, were based on perturbation theory and assumptions about pseudopotentials. We use and extend recently developed techniques to give a rigorous derivation of the asymptotic formula for the ground state energy of a dilute gas of $N$ fermions interacting with a short-range, positive potential of scattering length $a$. For spin 1/2 fermions, this is $E \sim E^0 + (\hbar^2/2m) 2 πN ρa$, where $E^0$ is the energy of the non-interacting system and $ρ$ is the density.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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