Dispersion relation of Landau elementary excitations and thermodynamic properties of superfluid

H Godfrin, K Beauvois, A Sultan, E Krotscheck… - Physical Review B, 2021 - APS
The dispersion relation ε (k) of the elementary excitations of superfluid He 4 has been
measured at very low temperatures, from saturated vapor pressure up to solidification, using …

Drawing Dispersion Curves: Band Structure Customization via Nonlocal Phononic Crystals

A Kazemi, KJ Deshmukh, F Chen, Y Liu, B Deng… - Physical Review Letters, 2023 - APS
Dispersion relations govern wave behaviors, and tailoring them is a grand challenge in
wave manipulation. We demonstrate the inverse design of phononic dispersion using …

Non-local phononic crystals for dispersion customization and undulation-point dynamics

A Kazemi, KJ Deshmukh, F Chen, Y Liu, B Deng… - arxiv preprint arxiv …, 2023 - arxiv.org
Dispersion relations govern wave behaviors, and tailoring them is a grand challenge in
wave manipulation. We demonstrate inverse design of phononic dispersion using non-local …

Metastable Phases of Liquid and Solid He

J Grucker - Journal of Low Temperature Physics, 2019 - Springer
Experiments and theories describing the metastable phases of liquid and solid^ 4 4 He are
presented and discussed. For the case of metastable liquid^ 4 4 He with respect to its …

[HTML][HTML] Observation of maxon-like ultrasound in elastic metabeam

P Zhang, Y Liu, K Zhang, Y Wu, F Chen, Y Chen… - APL Materials, 2024 - pubs.aip.org
We observe maxon-like dispersion of ultrasonic guided waves in elastic metamaterials
consisting of a rectangular beam and an array of cylindrical resonators. The pillars act as …

Dimensional reduction of helium-4 inside argon-plated MCM-41 nanopores

NS Nichols, TR Prisk, G Warren, P Sokol… - Physical Review B, 2020 - APS
The angstrom-scale coherence length describing the superfluid wave function of He 4 at low
temperatures has prevented its preparation in a truly one-dimensional geometry …

[LIBRO][B] Quantum Simulations of Low Dimensional Systems and Analytic Continuation of Imaginary Time Correlation Functions

NS Nichols - 2021 - search.proquest.com
For over thirty years, a long standing problem in quantum many-body physics has been to
reliably extract dynamical information from imaginary time quantum Monte Carlo data. I …