泛函重整化引起的锂原子三体损失
Three-body loss in lithium from functional renormalization
摘要：
本文用泛函积分方法计算了三组分$^6$ Li超冷原子气体的三体损耗。我们主张一个简单的图片中的损失收益的形成一个三原子的束缚态，trion。反过来，从一个简单的有效玻色子交换过程中估计的三原子形成的有效振幅。在泛函重整化群框架下计算了三电子的能隙和其他影响损耗系数的关键参量。
英文摘要：
We use functional integral methods for an estimate of the three-body loss in a three-component $^6$Li ultracold atom gas. We advocate a simple picture where the loss proceeds by the formation of a three-atom bound state, the trion. In turn, the effective amplitude for the trion formation from three atoms is estimated from a simple effective boson exchange process. The energy gap of the trion and other key quantities for the loss coefficient are computed in a functional renormalization group framework.
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