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

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.

11 pages, 9 figures

References in corpus (11)

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• Exact, Complete, and Universal Continuous-Time Worldline Monte Carlo Approach to the Statistics of Discrete Quantum Systems
• Observation of Unusual Mass Transport in Solid hcp 4He
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• Monolayer Solid Helium-4 Clusters on Graphite
• Growth of solid hcp \^4He off the melting curve
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• Transverse Quantum Fluids
• Universal Correlations as Fingerprints of Transverse Quantum Fluids
• Phases of superclimbing dislocation with long-range interaction between jogs

Cited by in corpus (4)

• Platforms for the realization and characterization of Tomonaga-Luttinger liquids
• Models of interacting bosons with exact ground states: a unified approach
• Transverse Quantum Superfluids
• Long-Range Order in a Strictly Short-Range Quasi-2D XY Model: When Critical Fluctuations Matter