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Non-linear Dynamics of the Trapped Quantum Vortex

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Non-linear Dynamics of the Trapped Quantum Vortex. / Depellette, Joe; Hayward, Callum; Guthrie, Andrew et al.
In: APS March Meeting 2021, 31.03.2019.

Research output: Contribution to Journal/MagazineMeeting abstractpeer-review

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Depellette J, Hayward C, Guthrie A, Kafanov S, Morrison N, Noble M et al. Non-linear Dynamics of the Trapped Quantum Vortex. APS March Meeting 2021. 2019 Mar 31;C44.014.

Author

Depellette, Joe ; Hayward, Callum ; Guthrie, Andrew et al. / Non-linear Dynamics of the Trapped Quantum Vortex. In: APS March Meeting 2021. 2019.

Bibtex

@article{81bf498b53fb41ae90ecec3eb31f6821,
title = "Non-linear Dynamics of the Trapped Quantum Vortex",
abstract = "Nanomechanical resonators have recently been studied as high-sensitivity probes of fluid dynamics in superfluid helium. When turbulence is introduced to such a system, quantum vortices may form and become trapped by the resonator, either completely surrounding the oscillating beam (a fully trapped vortex) or surrounding only part of it (a partially trapped vortex). Fully trapped vortices have been studied using the model of a linear harmonic oscillator behaviour with great success. However, in the presence of a partially trapped vortex, the oscillators have been found to behave non-linearly. We analysed the non-linear response of a doubly clamped nanobeam resonator submerged in helium-4 at 10 mK in the presence of a partially trapped vortex. Our analysis demonstrates that the observed non-linearities are caused by the dynamics of the vortex line. N. M. acknowledges the financial support of the US-UK Fulbright Program.",
author = "Joe Depellette and Callum Hayward and Andrew Guthrie and Sergey Kafanov and Nathaniel Morrison and Mark Noble and Yuri Pashkin and George Pickett and Viktor Tsepelin",
year = "2019",
month = mar,
day = "31",
language = "English",
journal = "APS March Meeting 2021",

}

RIS

TY - JOUR

T1 - Non-linear Dynamics of the Trapped Quantum Vortex

AU - Depellette, Joe

AU - Hayward, Callum

AU - Guthrie, Andrew

AU - Kafanov, Sergey

AU - Morrison, Nathaniel

AU - Noble, Mark

AU - Pashkin, Yuri

AU - Pickett, George

AU - Tsepelin, Viktor

PY - 2019/3/31

Y1 - 2019/3/31

N2 - Nanomechanical resonators have recently been studied as high-sensitivity probes of fluid dynamics in superfluid helium. When turbulence is introduced to such a system, quantum vortices may form and become trapped by the resonator, either completely surrounding the oscillating beam (a fully trapped vortex) or surrounding only part of it (a partially trapped vortex). Fully trapped vortices have been studied using the model of a linear harmonic oscillator behaviour with great success. However, in the presence of a partially trapped vortex, the oscillators have been found to behave non-linearly. We analysed the non-linear response of a doubly clamped nanobeam resonator submerged in helium-4 at 10 mK in the presence of a partially trapped vortex. Our analysis demonstrates that the observed non-linearities are caused by the dynamics of the vortex line. N. M. acknowledges the financial support of the US-UK Fulbright Program.

AB - Nanomechanical resonators have recently been studied as high-sensitivity probes of fluid dynamics in superfluid helium. When turbulence is introduced to such a system, quantum vortices may form and become trapped by the resonator, either completely surrounding the oscillating beam (a fully trapped vortex) or surrounding only part of it (a partially trapped vortex). Fully trapped vortices have been studied using the model of a linear harmonic oscillator behaviour with great success. However, in the presence of a partially trapped vortex, the oscillators have been found to behave non-linearly. We analysed the non-linear response of a doubly clamped nanobeam resonator submerged in helium-4 at 10 mK in the presence of a partially trapped vortex. Our analysis demonstrates that the observed non-linearities are caused by the dynamics of the vortex line. N. M. acknowledges the financial support of the US-UK Fulbright Program.

M3 - Meeting abstract

JO - APS March Meeting 2021

JF - APS March Meeting 2021

M1 - C44.014

ER -