论文标题
在零温度下排斥的玻色果混合物的功能重新归一化
Functional renormalization for repulsive Bose-Bose mixtures at zero temperature
论文作者
论文摘要
我们使用功能重新归一化组（FRG）研究了在零温度下在零温度下的两个和三个维度的弱抑制性玻色 - 果中的混合物。我们检查了RG流以及密度和自旋波动的作用。我们研究了相位分离的条件，并发现这发生在探索参数范围内的平均场点。最后，我们检查每个粒子的能量和凝结耗竭。我们获得的FRG计算与宏观特性的扰动方法的已知结果相比。
We study weakly-repulsive Bose-Bose mixtures in two and three dimensions at zero temperature using the functional renormalization group (FRG). We examine the RG flows and the role of density and spin fluctuations. We study the condition for phase separation and find that this occurs at the mean-field point within the range of parameters explored. Finally, we examine the energy per particle and condensation depletion. We obtain that our FRG calculations compare favorably with known results from perturbative approaches for macroscopic properties.
