论文标题
$^4 $ HE在纳米方面的媒体：有限温度下的4D XY量子批判性
$^4$He in Nanoporous Media: 4D XY Quantum Criticality at Finite Temperatures
论文作者
论文摘要
我们回顾了他在纳米孔玻璃杯中限制的超流体$^4 $的关键现象的研究。 $^4 $ HE在纳米培养基中是调查玻色子量子相过渡的理想理由。在目前的工作中，使用新开发的流体动力机械谐振器检查了关键现象。超级流体密度$ζ$的关键指数为1.0，与0.67的批量$^4 $ HE相比。我们还证明了超氟密度与$ | p -p -p _ {\ mathrm c} |^{ζ_p} $，$ζ_P= 1 $在任何有限温度下。这些是4D XY临界性的决定性证据，应在有限温度下仅在0 K时观察到。我们提出了纳米孔中纳米级局部叶片冷凝物（LBEC）之间相位对准有限温度下量子临界值的机制。与量子效应相比，在考虑相关长度的考虑中讨论了所提出的机制。
We review our study of critical phenomena in superfluid $^4$He confined in nanoporous glasses. $^4$He in nanoporous media is an ideal ground to survey the quantum phase transition of bosons. In the present work, critical phenomena were examined using a newly developed hydrodynamic mechanical resonator. The critical exponent of superfluid density $ζ$ was found to be 1.0, in contrast to 0.67 in bulk $^4$He. We also demonstrate that the superfluid density is proportional to $|P - P_{\mathrm c}|^{ζ_p}$ with $ζ_p = 1$ at any finite temperatures. These are the decisive evidences for the 4D XY criticality, which should have been observed only at 0 K, at finite temperatures. We propose a mechanism of the quantum criticality at finite temperatures in terms of phase alignment among the nanoscale localized Bose condensates (LBECs) in nanopores. The proposed mechanism are discussed in the consideration of the correlation length compared with the quantum effect.
