He-4的量子塑性和超固态响应
Quantum Plasticity and Supersolid Response in Helium-4
摘要：
我们认为，最近在固体$^4$ He中观察到的三个关键现象-质量超输运、异常等容压缩性（注射器效应）和巨塑性-通过倾斜量子粗糙位错的互连网络物理学相互紧密联系。作为这种联系的直接影响，几个预测如下：在没有$^3$ He杂质的情况下，注射器效应和巨塑性持续到$T=0$ ;动态低频注射器和巨塑性响应是无色散的;类似于巨塑性，但与沿位错核的超输运没有直接关系，$^3$ He杂质应在适当的低温下部分或完全抑制注射器效应。
英文摘要：
We argue that the three key phenomena recently observed in solid $^4$He---mass supertransport, anomalous isochoric compressibility (syringe effect), and giant plasticity---are closely linked to each other through the physics of an interconnected network of tilted quantum-rough dislocations. As immediate implications of this connection several predictions follow: In the absence of $^3$He impurities, the syringe effect and giant plasticity persist down to $T=0$; the dynamical low-frequency syringe and giant-plasticity responses are dispersionless; and similarly to giant plasticity but without direct relationship to the supertransport along the dislocation cores, $^3$He impurities should suppress the syringe effect partially or completely at appropriately low temperatures.
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