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Coherently precessing spin and orbital states in superfluid He-3-B.

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Coherently precessing spin and orbital states in superfluid He-3-B. / Fisher, Shaun N.; Suramlishvili, N.
In: Journal of Low Temperature Physics, Vol. 141, No. 3-4, 11.2005, p. 111-141.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Fisher, SN & Suramlishvili, N 2005, 'Coherently precessing spin and orbital states in superfluid He-3-B.', Journal of Low Temperature Physics, vol. 141, no. 3-4, pp. 111-141. https://doi.org/10.1007/s10909-005-8224-2

APA

Fisher, S. N., & Suramlishvili, N. (2005). Coherently precessing spin and orbital states in superfluid He-3-B. Journal of Low Temperature Physics, 141(3-4), 111-141. https://doi.org/10.1007/s10909-005-8224-2

Vancouver

Fisher SN, Suramlishvili N. Coherently precessing spin and orbital states in superfluid He-3-B. Journal of Low Temperature Physics. 2005 Nov;141(3-4):111-141. doi: 10.1007/s10909-005-8224-2

Author

Fisher, Shaun N. ; Suramlishvili, N. / Coherently precessing spin and orbital states in superfluid He-3-B. In: Journal of Low Temperature Physics. 2005 ; Vol. 141, No. 3-4. pp. 111-141.

Bibtex

@article{1efa82df302c4850926d229d84d03e1f,
title = "Coherently precessing spin and orbital states in superfluid He-3-B.",
abstract = "The Leggett equations for the spin dynamics of superfluid He-3 give a good description of the whole range of NMR phenomena observed at relatively high temperatures. However these equations assume that the orbital angular momentum of the condensate may only change on timescales much longer than the spin precession period. At the lowest achievable temperatures, the orbital viscosity of the B-phase of superfluid He-3 becomes vanishingly small, giving rise to the possibility of rapid orbital motion. We have reformulated Leggett's equations for the B-phase to allow for fast orbital dynamics in the absence of dissipation. The resulting non-linear equations of motion couple spin and orbital degrees of freedom resulting in qualitatively new phenomena. In particular, they allow for phase-locked precession of the spin and orbital angular momentum around an applied magnetic field. The coupled spin-orbit dynamics may eventually explain the exotic ultra long-lived NMR signals found at the lowest temperatures in He-3-B.",
keywords = "LONG-LIVED INDUCTION SIGNAL, MAGNETIC-FIELD, B-PHASE, DYNAMICS, TEMPERATURES, SUPERCURRENT, REGIME, DOMAIN, WAVES, MODES",
author = "Fisher, {Shaun N.} and N. Suramlishvili",
year = "2005",
month = nov,
doi = "10.1007/s10909-005-8224-2",
language = "English",
volume = "141",
pages = "111--141",
journal = "Journal of Low Temperature Physics",
issn = "0022-2291",
publisher = "SPRINGER/PLENUM PUBLISHERS",
number = "3-4",

}

RIS

TY - JOUR

T1 - Coherently precessing spin and orbital states in superfluid He-3-B.

AU - Fisher, Shaun N.

AU - Suramlishvili, N.

PY - 2005/11

Y1 - 2005/11

N2 - The Leggett equations for the spin dynamics of superfluid He-3 give a good description of the whole range of NMR phenomena observed at relatively high temperatures. However these equations assume that the orbital angular momentum of the condensate may only change on timescales much longer than the spin precession period. At the lowest achievable temperatures, the orbital viscosity of the B-phase of superfluid He-3 becomes vanishingly small, giving rise to the possibility of rapid orbital motion. We have reformulated Leggett's equations for the B-phase to allow for fast orbital dynamics in the absence of dissipation. The resulting non-linear equations of motion couple spin and orbital degrees of freedom resulting in qualitatively new phenomena. In particular, they allow for phase-locked precession of the spin and orbital angular momentum around an applied magnetic field. The coupled spin-orbit dynamics may eventually explain the exotic ultra long-lived NMR signals found at the lowest temperatures in He-3-B.

AB - The Leggett equations for the spin dynamics of superfluid He-3 give a good description of the whole range of NMR phenomena observed at relatively high temperatures. However these equations assume that the orbital angular momentum of the condensate may only change on timescales much longer than the spin precession period. At the lowest achievable temperatures, the orbital viscosity of the B-phase of superfluid He-3 becomes vanishingly small, giving rise to the possibility of rapid orbital motion. We have reformulated Leggett's equations for the B-phase to allow for fast orbital dynamics in the absence of dissipation. The resulting non-linear equations of motion couple spin and orbital degrees of freedom resulting in qualitatively new phenomena. In particular, they allow for phase-locked precession of the spin and orbital angular momentum around an applied magnetic field. The coupled spin-orbit dynamics may eventually explain the exotic ultra long-lived NMR signals found at the lowest temperatures in He-3-B.

KW - LONG-LIVED INDUCTION SIGNAL

KW - MAGNETIC-FIELD

KW - B-PHASE

KW - DYNAMICS

KW - TEMPERATURES

KW - SUPERCURRENT

KW - REGIME

KW - DOMAIN

KW - WAVES

KW - MODES

U2 - 10.1007/s10909-005-8224-2

DO - 10.1007/s10909-005-8224-2

M3 - Journal article

VL - 141

SP - 111

EP - 141

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 3-4

ER -