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Superclimbing modes in transverse quantum fluids: signature statistical and dynamical features

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arxiv 2404.03465 v1 pith:OW7RN4BZ submitted 2024-04-04 cond-mat.other

Chao Zhang , Massimo Boninsegni , Anatoly Kuklov , Nikolay Prokof'ev , Boris Svistunov This is my paper · ORCID
classification cond-mat.other
keywords modessuperclimbingquantumsuperfluidedgefieldfluidstransverse
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abstract

Superclimbing modes are hallmark degrees of freedom of transverse quantum fluids describing wide superfluid one-dimensional interfaces and/or edges with negligible Peierls barrier. We report the first direct numeric evidence of quantum shape fluctuations -- caused by superclimbing modes -- in simple lattice models, as well as at the free edge of an incomplete solid monolayer of $^4$He adsorbed on graphite. Our data unambiguously reveals the defining feature of the superclimbing modes -- canonical conjugation of the edge displacement field to the field of superfluid phase -- and its unexpected implication, i.e., that superfluid stiffness can be inferred from density snapshots.

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Cited by 1 Pith paper

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  1. Long-Range Order in a Strictly Short-Range Quasi-2D XY Model: When Critical Fluctuations Matter

    cond-mat.stat-mech 2025-06 conditional novelty 8.0 of 10

    In a strictly short-range XY model made of a plane intersected by parallel planes, true long-range order appears along the intersection lines when the parallel planes enter a Berezinskii-Kosterlitz-Thouless critical phase.

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