Surface State Dissipation in Confined

AJ Shook, E Varga, I Boettcher, JP Davis - Physical Review Letters, 2024 - APS
We have studied the power dependence of superfluid Helmholtz resonators in flat (750 and
1800 nm) rectangular channels. In the A phase of superfluid He 3, we observe a nonlinear …

Three-tone coherent microwave electromechanical measurement of a superfluid Helmholtz resonator

S Spence, E Varga, CA Potts, JP Davis - Applied Physics Letters, 2023 - pubs.aip.org
We demonstrate electromechanical coupling between a superfluid mechanical mode and a
microwave mode formed by a patterned microfluidic chip and a 3D cavity. The electric field …

Detection of Quantized Vortices Using Fourth Sound Attenuation

F Novotný, M Talíř, R Dwivedi, Š Midlik… - Journal of Low …, 2024 - Springer
Superfluid helium confined to nanofluidic systems is emerging as an important system for
studies of two-dimensional turbulence and as the basis for novel quantum technologies. In …

Designing edge currents using mesoscopic patterning in chiral d-wave superconductors

P Holmvall, AM Black-Schaffer - arxiv preprint arxiv:2501.14563, 2025 - arxiv.org
Chiral superconductors are topological as characterized by a finite Chern number and chiral
edge modes. Direct fingerprints of chiral superconductivity is thus often taken to be …

Critical behavior and multistability in quasi-two-dimensional turbulence

F Novotný, M Talíř, Š Midlik, E Varga - arxiv preprint arxiv:2406.08566, 2024 - arxiv.org
Two-dimensional (2D) turbulence, despite being an idealization of real flows, is of
fundamental interest as a model of the spontaneous emergence of order from chaotic flows …

A hermetic on-cryostat helium source for low temperature experiments

KE Castoria, H Byeon, J Theis… - Review of Scientific …, 2024 - pubs.aip.org
We describe a helium source cell for use in cryogenic experiments that is hermetically
sealed in situ on the cold plate of a cryostat. The source cell is filled with helium gas at room …

Parylene-bonded micro-fluidic channels for cryogenic experiments at superfluid He-4 temperatures

Š Midlik, I Gablech, M Goleňa, J Brodský… - Review of Scientific …, 2024 - pubs.aip.org
We present the manufacturing process of a (24.5× 100) μm 2-sized on-chip flow channel
intended for flow experiments with normal and superfluid phases of 4 He and showcase …