论文标题
在改善的Hartree孔近似中，均匀稀释的Bose气体的凝结部分
The condensed fraction of a homogeneous dilute Bose gas within the improved Hartree-Fock approximation
论文作者
论文摘要
最近的实验动机[R. Lopes等。 al。，物理。莱特牧师。 119，190404（2017）]使用均匀的玻色气，我们研究了均匀的稀岩气以计算量子耗尽密度。通过在改进的Hartree-fock近似中，通过康沃尔 - jackiw-tomboulis有效的动作方法，凝结分数以更简单的方式恢复，并与实验数据中的相应发现进行了比较。此外，考虑到几个物理量，尤其是化学势和自由能密度，还要考虑高阶术语。
Motivated by the recent experiment [R. Lopes et. al., Phys. Rev. Lett. 119, 190404 (2017)] with a homogeneous Bose gas, we investigate a homogeneous dilute Bose gas to calculate the quantum depletion density. By means of the Cornwall-Jackiw-Tomboulis effective action approach within an improved Hartree-Fock approximation, the condensed fraction is recovered in a simpler manner and compared with corresponding findings in experimental data. Additionally, higher-order terms are taken into account for several physical quantities, in particular for the chemical potential and free energy density.
