论文标题
薄弱电势中的玻色果混合物：波动和超流量
Bose-Bose mixtures in a weak-disorder potential: Fluctuations and superfluidity
论文作者
论文摘要
我们研究在零温度下弱鉴定电势中均匀稀释的玻色气体的性质。通过使用扰动理论，我们计算出对冷凝物密度，状态方程，可压缩性和超流体密度的纠正措施的函数，这是密度，无序强度和混杂性参数的函数。发现这种疾病的潜力可能导致改变混乱的不信度条件，并且在存在这种疾病的情况下，完全不可混乱的阶段是不可能的。我们表明，该疾病和种间相互作用的有趣相互作用可能会强烈影响每个组件的定位，量子波动，可压缩性以及系统的超流量。
We study the properties of a homogeneous dilute Bose-Bose gas in a weak-disorder potential at zero temperature. By using the perturbation theory, we calculate the disorder corrections to the condensate density, the equation of state, the compressibility, and the superfluid density as a function of density, strength of disorder, and miscibility parameter. It is found that the disorder potential may lead to modifying the miscibility-immiscibility condition and a full miscible phase turns out to be impossible in the presence of the disorder. We show that the intriguing interplay of the disorder and intra- and interspecies interactions may strongly influence the localization of each component, the quantum fluctuations, and the compressibility, as well as the superfluidity of the system.
