Self-trapping of magnon Bose-Einstein Condensates in the ground state and on excited levels: from harmonic to box cofinement

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Self-trapping of magnon Bose-Einstein Condensates in the ground state and on excited levels: from harmonic to box cofinement. / Autti, S.; Bunkov, Yu.M.; Eltsov, V.B.; Heikkinen, P.J.; Hosio, J.J.; Hunger, P.; Krusius, M.; Volovik, G.E.

In: Physical Review Letters, Vol. 108, No. 14, 145303, 2012, p. 1-5.

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@article{f9d36530f7144970be232074c430707f,
title = "Self-trapping of magnon Bose-Einstein Condensates in the ground state and on excited levels: from harmonic to box cofinement",
abstract = "Long-lived coherent spin precession of 3He−B at low temperatures around 0.2Tc is a manifestation of Bose-Einstein condensation of spin-wave excitations or magnons in a magnetic trap which is formed by the order-parameter texture and can be manipulated experimentally. When the number of magnons increases, the orbital texture reorients under the influence of the spin-orbit interaction and the profile of the trap gradually changes from harmonic to a square well, with walls almost impenetrable to magnons. This is the first experimental example of Bose condensation in a box. By selective rf pumping the trap can be populated with a ground-state condensate or one at any of the excited energy levels. In the latter case the ground state is simultaneously populated by relaxation from the exited level, forming a system of two coexisting condensates.",
keywords = "Ecited levels, Ground states, Magnon Bose-Einstein Condenssates, Ecited levels, Ground states, Magnon Bose-Einstein Condenssates, Ecited levels, Ground states, Magnon Bose-Einstein Condenssates",
author = "S. Autti and Yu.M. Bunkov and V.B. Eltsov and P.J. Heikkinen and J.J. Hosio and P. Hunger and M. Krusius and G.E. Volovik",
year = "2012",
doi = "10.1103/PhysRevLett.108.145303",
language = "English",
volume = "108",
pages = "1--5",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "14",

}

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TY - JOUR

T1 - Self-trapping of magnon Bose-Einstein Condensates in the ground state and on excited levels: from harmonic to box cofinement

AU - Autti, S.

AU - Bunkov, Yu.M.

AU - Eltsov, V.B.

AU - Heikkinen, P.J.

AU - Hosio, J.J.

AU - Hunger, P.

AU - Krusius, M.

AU - Volovik, G.E.

PY - 2012

Y1 - 2012

N2 - Long-lived coherent spin precession of 3He−B at low temperatures around 0.2Tc is a manifestation of Bose-Einstein condensation of spin-wave excitations or magnons in a magnetic trap which is formed by the order-parameter texture and can be manipulated experimentally. When the number of magnons increases, the orbital texture reorients under the influence of the spin-orbit interaction and the profile of the trap gradually changes from harmonic to a square well, with walls almost impenetrable to magnons. This is the first experimental example of Bose condensation in a box. By selective rf pumping the trap can be populated with a ground-state condensate or one at any of the excited energy levels. In the latter case the ground state is simultaneously populated by relaxation from the exited level, forming a system of two coexisting condensates.

AB - Long-lived coherent spin precession of 3He−B at low temperatures around 0.2Tc is a manifestation of Bose-Einstein condensation of spin-wave excitations or magnons in a magnetic trap which is formed by the order-parameter texture and can be manipulated experimentally. When the number of magnons increases, the orbital texture reorients under the influence of the spin-orbit interaction and the profile of the trap gradually changes from harmonic to a square well, with walls almost impenetrable to magnons. This is the first experimental example of Bose condensation in a box. By selective rf pumping the trap can be populated with a ground-state condensate or one at any of the excited energy levels. In the latter case the ground state is simultaneously populated by relaxation from the exited level, forming a system of two coexisting condensates.

KW - Ecited levels

KW - Ground states

KW - Magnon Bose-Einstein Condenssates

KW - Ecited levels

KW - Ground states

KW - Magnon Bose-Einstein Condenssates

KW - Ecited levels

KW - Ground states

KW - Magnon Bose-Einstein Condenssates

UR - http://prl.aps.org/pdf/PRL/v108/i14/e145303

U2 - 10.1103/PhysRevLett.108.145303

DO - 10.1103/PhysRevLett.108.145303

M3 - Article

VL - 108

SP - 1

EP - 5

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 14

M1 - 145303

ER -

ID: 739247