论文标题
$ para $ -h $ _2 $在石墨上吸附的第二层的超验证
Supersolidity in the second layer of $para$-H$_2$ adsorbed on graphite
论文作者
论文摘要
我们使用Quantum Monte Carlo方法计算了$ Para $ -H $ _2 $的第二层的相图。第二层显示出不稳定的三角形晶体结构。 By using a symmetric wave function, that makes possible molecule exchanges, we observed that this nearly two-dimensional crystal shows a finite superfluid density around a total density of 0.1650 Å$^{-2}$.发现该超olid阶段的超流体分数很小，0.41 $ \ pm $ 0.05 \％，但在实验上仍然可以访问。
We calculated the phase diagram of the second layer of $para$-H$_2$ adsorbed on graphite using quantum Monte Carlo methods. The second layer shows an incommensurate triangular crystal structure. By using a symmetric wave function, that makes possible molecule exchanges, we observed that this nearly two-dimensional crystal shows a finite superfluid density around a total density of 0.1650 Å$^{-2}$. The superfluid fraction of this supersolid phase was found to be small, 0.41$\pm$0.05 \%, but still experimentally accessible.
