37 citations · 188 across the 12 of their papers we have counts for
12 papers
Long nanomechanical resonators with circular cross-section
Samuli Autti, Andrew Casey, Marie Connelly +23
Fabrication of superconducting nanomechanical resonators for quantum research, detectors and devices traditionally relies on a lithographic process, resulting in oscillators with s…
Effect of boundary condition on Kapitza resistance between superfluid He-B and sintered metal
S. Autti, A. M. Guénault, R. P. Haley +7
Understanding the temperature dependence of thermal boundary resistance, or Kapitza resistance, between liquid helium and sintered metal has posed a problem in low temperature phys…
Fundamental dissipation due to bound fermions in the zero-temperature limit
S. Autti, R. P. Haley, A. Jennings +7
The ground state of a fermionic condensate is well protected against perturbations in the presence of an isotropic gap. Regions of gap suppression, surfaces and vortex cores which…
Multimode probing of superfluid by tuning forks
A. Guthrie, R. P. Haley, A. Jennings +9
Flexural mode vibrations of miniature piezoelectric tuning forks (TF) are known to be highly sensitive to superfluid excitations and quantum turbulence in and $\mat…
Detecting the "phonon wind" in superfluid by a nanomechanical resonator
A. M. Guenault, A. Guthrie, R. P. Haley +8
Nanoscale mechanical resonators are widely utilized to provide high sensitivity force detectors. Here we demonstrate that such high quality factor resonators immersed in superfluid…
Operating Nanobeams in a Quantum Fluid
D. I. Bradley, R. George, A. M. Guenault +12
Microelectromechanical (MEMS) and nanoelectromechanical systems (NEMS) are ideal candidates for exploring quantum fluids since they can be manufactured reproducibly, cover the freq…
Orbitropic Effect in Superfluid He B-phase boundaries
M. Arrayás, R. Haley, G. R. Pickett +1
In this work we study the influence of orbital viscosity on the dynamics of the order parameter texture in the superfluid B-phase of He near a moving bounda ry. Based on the re…
Visualization of quantum turbulence in superfluid He-B: Combined numerical/experimental study of Andreev reflection
Viktor Tsepelin, Andrew W. Baggaley, Yuri A. Sergeev +5
We present a combined numerical and experimental study of Andreev scattering from quantum turbulence in superfluid He-B at ultralow temperatures. We simulate the evolution of m…
Breaking the superfluid speed limit
D. I. Bradley, S. N. Fisher, A. M. Guénault +7
Coherent condensates appear as emergent phenomena in many systems, sharing the characteristic feature of an energy gap separating the lowest excitations from the condensate ground…
Probing Bogoliubov quasiparticles in superfluid He with a 'vibrating-wire like' MEMS device
M. Defoort, S. Dufresnes, S. L. Ahlstrom +11
We have measured the interaction between superfluid He-B and a micro-machined goalpost-shaped device at temperatures below . The measured damping follows well the the…
Visualizing Pure Quantum Turbulence in Superfluid He: Andreev Reflection and its Spectral Properties
A. W. Baggaley, V. Tsepelin, C. F. Barenghi +4
Superfluid He-B in the zero-temperature limit offers a unique means of studying quantum turbulence by the Andreev reflection of quasiparticle excitations by the vortex flow fie…
The Generation, Evolution and Decay of Pure Quantum Turbulence: A Full Biot-Savart Simulation
Shoji Fujiyama, Akira Mitani, Makoto Tsubota +6
A zero temperature superfluid is arguably the simplest system in which to study complex fluid dynamics, such as turbulence. We describe computer simulations of such turbulence and…