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Transport of bound quasiparticle states in a two-dimensional boundary superfluid

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Transport of bound quasiparticle states in a two-dimensional boundary superfluid. / Autti, Samuli; Haley, Richard; Jennings, Ash et al.
In: Nature Communications, Vol. 14, 6819, 02.11.2023.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Autti, S, Haley, R, Jennings, A, Pickett, G, Poole, M, Soldatov, A, Tsepelin, V, Vonka, J, Zavyalov, V & Zmeev, D 2023, 'Transport of bound quasiparticle states in a two-dimensional boundary superfluid', Nature Communications, vol. 14, 6819. https://doi.org/10.1038/s41467-023-42520-y

APA

Autti, S., Haley, R., Jennings, A., Pickett, G., Poole, M., Soldatov, A., Tsepelin, V., Vonka, J., Zavyalov, V., & Zmeev, D. (2023). Transport of bound quasiparticle states in a two-dimensional boundary superfluid. Nature Communications, 14, Article 6819. https://doi.org/10.1038/s41467-023-42520-y

Vancouver

Autti S, Haley R, Jennings A, Pickett G, Poole M, Soldatov A et al. Transport of bound quasiparticle states in a two-dimensional boundary superfluid. Nature Communications. 2023 Nov 2;14:6819. doi: 10.1038/s41467-023-42520-y

Author

Autti, Samuli ; Haley, Richard ; Jennings, Ash et al. / Transport of bound quasiparticle states in a two-dimensional boundary superfluid. In: Nature Communications. 2023 ; Vol. 14.

Bibtex

@article{f85adb84b3bb464790d6feb17491c6ce,
title = "Transport of bound quasiparticle states in a two-dimensional boundary superfluid",
abstract = "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 quasiparticles with energies below that of those in the bulk. We can create a non-equilibrium distribution of these states within the quantum well and observe the dynamics of their motion indirectly. Here we show that the induced quasiparticle currents flow diffusively in the two-dimensional system. Combining this with a direct measurement of energy conservation, we conclude that the bulk superfluid 3He is effectively surrounded by an independent two-dimensional superfluid, which is isolated from the bulk superfluid but which readily interacts with mechanical probes. Our work shows that this two-dimensional quantum condensate and the dynamics of the surface bound states are experimentally accessible, opening the possibility of engineering two-dimensional quantum condensates of arbitrary topology.",
author = "Samuli Autti and Richard Haley and Ash Jennings and George Pickett and Malcolm Poole and Arkady Soldatov and Viktor Tsepelin and Jakub Vonka and Vladislav Zavyalov and Dmitry Zmeev",
year = "2023",
month = nov,
day = "2",
doi = "10.1038/s41467-023-42520-y",
language = "English",
volume = "14",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Transport of bound quasiparticle states in a two-dimensional boundary superfluid

AU - Autti, Samuli

AU - Haley, Richard

AU - Jennings, Ash

AU - Pickett, George

AU - Poole, Malcolm

AU - Soldatov, Arkady

AU - Tsepelin, Viktor

AU - Vonka, Jakub

AU - Zavyalov, Vladislav

AU - Zmeev, Dmitry

PY - 2023/11/2

Y1 - 2023/11/2

N2 - 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 quasiparticles with energies below that of those in the bulk. We can create a non-equilibrium distribution of these states within the quantum well and observe the dynamics of their motion indirectly. Here we show that the induced quasiparticle currents flow diffusively in the two-dimensional system. Combining this with a direct measurement of energy conservation, we conclude that the bulk superfluid 3He is effectively surrounded by an independent two-dimensional superfluid, which is isolated from the bulk superfluid but which readily interacts with mechanical probes. Our work shows that this two-dimensional quantum condensate and the dynamics of the surface bound states are experimentally accessible, opening the possibility of engineering two-dimensional quantum condensates of arbitrary topology.

AB - 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 quasiparticles with energies below that of those in the bulk. We can create a non-equilibrium distribution of these states within the quantum well and observe the dynamics of their motion indirectly. Here we show that the induced quasiparticle currents flow diffusively in the two-dimensional system. Combining this with a direct measurement of energy conservation, we conclude that the bulk superfluid 3He is effectively surrounded by an independent two-dimensional superfluid, which is isolated from the bulk superfluid but which readily interacts with mechanical probes. Our work shows that this two-dimensional quantum condensate and the dynamics of the surface bound states are experimentally accessible, opening the possibility of engineering two-dimensional quantum condensates of arbitrary topology.

U2 - 10.1038/s41467-023-42520-y

DO - 10.1038/s41467-023-42520-y

M3 - Journal article

VL - 14

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

M1 - 6819

ER -