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arXiv · 1409.3750

Quantum Plasticity and Supersolid Response in Helium-4

Anatoly Kuklov·Lode Pollet·Nikolay Prokof'ev·Boris Svistunov
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Abstract

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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Anatoly Kuklov, Lode Pollet, Nikolay Prokof'ev, Boris Svistunov. 2014-09-12. Quantum Plasticity and Supersolid Response in Helium-4. https://doi.org/10.1103/physrevb.90.184508

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