Zobrazeno 1 - 10
of 310
pro vyhledávání: '"Tsepelin V"'
Autor:
Autti, S., Haley, R. P., Jennings, A., Pickett, G. R., Surovtsev, E. V., Tsepelin, V., Zmeev, D. E.
Vibrating probes when immersed in a fluid can provide powerful tools for characterising the surrounding medium. In superfluid 3He-B, a condensate of Cooper pairs, the dissipation arising from the scattering of quasiparticle excitations from a mechani
Externí odkaz:
http://arxiv.org/abs/2403.06226
Autor:
Autti, S., Casey, A., Eng, N., Darvishi, N., Franchini, P., Haley, R. P., Heikkinen, P. J., Kemp, A., Leason, E., Levitin, L. V., Monroe, J., March-Russel, J., Noble, M. T., Prance, J. R., Rojas, X., Salmon, T., Saunders, J., Smith, R., Thompson, M. D., Tsepelin, V., West, S. M., Whitehead, L., Zhang, K., Zmeev, D. E.
Publikováno v:
Journal of Low Temperature Physics, Special Issue: Quantum Fluids and Solids (QFS2023)
We report the results of radioactivity assays and heat leak calculations for a range of common cryogenic materials, considered for use in the QUEST-DMC superfluid 3He dark matter detector. The bolometer, instrumented with nanomechanical resonators, w
Externí odkaz:
http://arxiv.org/abs/2402.00181
Autor:
Autti, S., Casey, A., Eng, N., Darvishi, N., Franchini, P., Haley, R. P., Heikkinen, P. J., Jennings, A., Kemp, A., Leason, E., Levitin, L. V., Monroe, J., March-Russel, J., Noble, M. T., Prance, J. R., Rojas, X., Salmon, T., Saunders, J., Smith, R., Thompson, M. D., Tsepelin, V., West, S. M., Whitehead, L., Zavjalov, V. V., Zmeev, D. E.
Publikováno v:
Eur. Phys. J. C (2024) 84:248
The focus of dark matter searches to date has been on Weakly Interacting Massive Particles (WIMPs) in the GeV/$c^2$-TeV/$c^2$ mass range. The direct, indirect and collider searches in this mass range have been extensive but ultimately unsuccessful, p
Externí odkaz:
http://arxiv.org/abs/2310.11304
Autor:
Autti, S., Haley, R. P., Jennings, A., Pickett, G. R., Poole, M., Schanen, R., Soldatov, A. A., Tsepelin, V., Vonka, J., Zavjalov, V. V., Zmeev, D. E.
Publikováno v:
Nature Communications 14, 6819 (2023)
The B phase of superfluid 3He can be cooled into the pure superfluid regime, where the thermal quasiparticle density is negligible. The bulk superfluid is surrounded by a quantum well at the boundaries of the container, confining a sea of quasipartic
Externí odkaz:
http://arxiv.org/abs/2303.16518
Autor:
Gu'enault, A. M., McClintock, P. V. E., Poole, M., Schanen, R., Tsepelin, V., Zmeev, D., Schmoranzer, D., Vinen, W. F.
We describe a new type of torsional oscillator, suitable for studies of quantum fluids at frequencies of $\sim$ $100$ Hz, but capable of reaching high velocities of up to several cm\,s$^{-1}$. This requires the oscillator amplitude to exceed $100$ $\
Externí odkaz:
http://arxiv.org/abs/2201.08503
Autor:
Guthrie, A., Kafanov, S., Noble, M. T., Pashkin, Yu. A., Pickett, G. R., Tsepelin, V., Dorofeev, A. A., Krupenin, V. A., Presnov, D. E.
Since we still lack a theory of classical turbulence, attention has focused on the conceptually simpler turbulence in quantum fluids. Can such systems of identical singly-quantized vortices provide a physically accessible "toy model" of the classical
Externí odkaz:
http://arxiv.org/abs/2007.04482
Autor:
Autti, S., Guénault, A. M., Haley, R. P., Jennings, A., Pickett, G. R., Schanen, R., Soldatov, A. A., Tsepelin, V., Vonka, J., Zmeev, D. E.
Publikováno v:
Phys. Rev. B 102, 064508 (2020)
Understanding the temperature dependence of thermal boundary resistance, or Kapitza resistance, between liquid helium and sintered metal has posed a problem in low temperature physics for decades. In the ballistic regime of superfluid $^{3}$He-B, we
Externí odkaz:
http://arxiv.org/abs/2005.05838
Autor:
Autti, S., Haley, R. P., Jennings, A., Pickett, G. R., Schanen, R., Soldatov, A. A., Tsepelin, V., Vonka, J., Wilcox, T., Zmeev, D. E.
Publikováno v:
Nat Commun 11, 4742 (2020)
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 host Andreev-bound states, seemingly lift that strict protection. Here
Externí odkaz:
http://arxiv.org/abs/2002.10865
Autor:
Guthrie, A., Haley, R. P., Jennings, A., Kafanov, S., Kolosov, O., Mucientes, M., Noble, M. T., Pashkin, Yu. A., Pickett, G. R., Tsepelin, V., Zmeev, D. E., Efimov, V.
Flexural mode vibrations of miniature piezoelectric tuning forks (TF) are known to be highly sensitive to superfluid excitations and quantum turbulence in $\mathrm{^3He}$ and $\mathrm{^4He}$ quantum fluids, as well as to the elastic properties of sol
Externí odkaz:
http://arxiv.org/abs/1908.07853
Autor:
Guenault, A. M., Guthrie, A., Haley, R. P., Kafanov, S., Pashkin, Yu. A., Pickett, G. R., Tsepelin, V., Zmeev, D. E., Collin, E., Gazizulin, R., Maillet, O.
Publikováno v:
Phys. Rev. B 101, 060503 (2020)
Nanoscale mechanical resonators are widely utilized to provide high sensitivity force detectors. Here we demonstrate that such high quality factor resonators immersed in superfluid \(^4\mathrm{He}\) can be excited by a modulated flux of phonons. A na
Externí odkaz:
http://arxiv.org/abs/1907.01947