论文标题
在改善的Hartree-fock近似中，稀释的Bose气体的冷凝水密度
Density of condensate of a dilute Bose gas in improved Hartree-Fock approximation
论文作者
论文摘要
以康瓦尔 - 杰克·托姆斯（Cornwal-Jackiw-Tomboulis）有效的作用方法的方式，在改善的哈特里（Hartree）库克的框架内研究了限制在两个平面壁之间的稀岩气的密度。因此，在动量积分中考虑了高阶术语，量子波动被考虑在内。我们的结果表明，与现场运算符的期望值平方相比，量子波动显着贬低了冷凝水的密度。与GROSS-PITAEVSKII理论的结果进行了比较。
In a manner of Cornwal-Jackiw-Tomboulis effective action approach, the density of condensate of a dilute Bose gas confined between two planar walls is investigated within the framework of improved Hartree-Fock. Thereby, the quantum fluctuations are taken into account with presence of high-order terms in the momentum integrals. Our results show that the quantum fluctuations significantly belittle the density of condensate compared with square of the expectation value of the field operator. The comparison with relating results of Gross-Pitaevskii theory is made.
