Quasiparticle damping of surface waves in superfluid 3He and 4He

M.S. Manninen; J. Rysti; I. Todoshchenko; J. Tuoriniemi

doi:10.1103/PhysRevB.90.224502

Quasiparticle damping of surface waves in superfluid 3He and 4He

M.S. Manninen, J. Rysti, I. Todoshchenko, J. Tuoriniemi

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Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

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Abstrakti

Oscillations on free surfaces of superfluids at the inviscid limit are damped by quasiparticle scattering. We study this effect in both superfluid 3He and superfluid 4He, deep below the respective critical temperatures. Surface oscillators offer several benefits over immersed mechanical oscillators traditionally used for similar purposes. Damping is modeled as specular scattering of ballistic quasiparticles from the moving free surface. The model is in reasonable agreement with our measurements for superfluid 4He but significant deviation is found for 3He.

Alkuperäiskieli	Englanti
Artikkeli	224502
Sivut	1-4
Julkaisu	Physical Review B
Vuosikerta	90
Numero	22
DOI - pysyväislinkit	https://doi.org/10.1103/PhysRevB.90.224502
Tila	Julkaistu - 2014
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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10.1103/PhysRevB.90.224502

PhysRevB.90.224502Final published version, 228 KB

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http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.224502

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title = "Quasiparticle damping of surface waves in superfluid 3He and 4He",

abstract = "Oscillations on free surfaces of superfluids at the inviscid limit are damped by quasiparticle scattering. We study this effect in both superfluid 3He and superfluid 4He, deep below the respective critical temperatures. Surface oscillators offer several benefits over immersed mechanical oscillators traditionally used for similar purposes. Damping is modeled as specular scattering of ballistic quasiparticles from the moving free surface. The model is in reasonable agreement with our measurements for superfluid 4He but significant deviation is found for 3He.",

author = "M.S. Manninen and J. Rysti and I. Todoshchenko and J. Tuoriniemi",

year = "2014",

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T1 - Quasiparticle damping of surface waves in superfluid 3He and 4He

AU - Manninen, M.S.

AU - Rysti, J.

AU - Todoshchenko, I.

AU - Tuoriniemi, J.

PY - 2014

Y1 - 2014

N2 - Oscillations on free surfaces of superfluids at the inviscid limit are damped by quasiparticle scattering. We study this effect in both superfluid 3He and superfluid 4He, deep below the respective critical temperatures. Surface oscillators offer several benefits over immersed mechanical oscillators traditionally used for similar purposes. Damping is modeled as specular scattering of ballistic quasiparticles from the moving free surface. The model is in reasonable agreement with our measurements for superfluid 4He but significant deviation is found for 3He.

AB - Oscillations on free surfaces of superfluids at the inviscid limit are damped by quasiparticle scattering. We study this effect in both superfluid 3He and superfluid 4He, deep below the respective critical temperatures. Surface oscillators offer several benefits over immersed mechanical oscillators traditionally used for similar purposes. Damping is modeled as specular scattering of ballistic quasiparticles from the moving free surface. The model is in reasonable agreement with our measurements for superfluid 4He but significant deviation is found for 3He.

UR - http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.224502

U2 - 10.1103/PhysRevB.90.224502

DO - 10.1103/PhysRevB.90.224502

M3 - Article

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Quasiparticle damping of surface waves in superfluid 3He and 4He

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