Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas

Hyewon Pechkis, Jonathan Wrubel, Arne Schwettmann, Paul Griffin, Ryan Barnett, Eite Tiesinga, Paul Lett

Research output: Contribution to journalLetter

21 Citations (Scopus)

Abstract

We present experimental observations of coherent spin-population oscillations in a cold thermal, Bose gas of spin-1 23Na atoms. The population oscillations in a multi-spatial-mode thermal gas have the same behavior as those observed in a single-spatial-mode antiferromagnetic spinor Bose-Einstein condensate. We demonstrate this by showing that the two situations are described by the same dynamical equations, with a factor of 2 change in the spin-dependent interaction coefficient, which results from the change to particles with distinguishable momentum states in the thermal gas. We compare this theory to the measured spin population evolution after times up to a few hundreds of ms, finding quantitative agreement with the amplitude and period. We also measure the damping time of the oscillations as a function of magnetic field.
LanguageEnglish
Article number025301
Number of pages5
JournalPhysical Review Letters
Volume111
Issue number2
DOIs
Publication statusPublished - 9 Jul 2013

Fingerprint

gases
oscillations
Bose-Einstein condensates
damping
momentum
coefficients
magnetic fields
atoms
interactions

Keywords

  • Bose-Einstein condensate
  • Spinor BEC
  • cold thermal

Cite this

Pechkis, H., Wrubel, J., Schwettmann, A., Griffin, P., Barnett, R., Tiesinga, E., & Lett, P. (2013). Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas. Physical Review Letters, 111(2), [025301]. https://doi.org/10.1103/PhysRevLett.111.025301
Pechkis, Hyewon ; Wrubel, Jonathan ; Schwettmann, Arne ; Griffin, Paul ; Barnett, Ryan ; Tiesinga, Eite ; Lett, Paul. / Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas. In: Physical Review Letters. 2013 ; Vol. 111, No. 2.
@article{a2ff1f95bb1243dda15350d73a75814b,
title = "Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas",
abstract = "We present experimental observations of coherent spin-population oscillations in a cold thermal, Bose gas of spin-1 23Na atoms. The population oscillations in a multi-spatial-mode thermal gas have the same behavior as those observed in a single-spatial-mode antiferromagnetic spinor Bose-Einstein condensate. We demonstrate this by showing that the two situations are described by the same dynamical equations, with a factor of 2 change in the spin-dependent interaction coefficient, which results from the change to particles with distinguishable momentum states in the thermal gas. We compare this theory to the measured spin population evolution after times up to a few hundreds of ms, finding quantitative agreement with the amplitude and period. We also measure the damping time of the oscillations as a function of magnetic field.",
keywords = "Bose-Einstein condensate, Spinor BEC, cold thermal",
author = "Hyewon Pechkis and Jonathan Wrubel and Arne Schwettmann and Paul Griffin and Ryan Barnett and Eite Tiesinga and Paul Lett",
note = "http://arxiv.org/abs/1306.4255",
year = "2013",
month = "7",
day = "9",
doi = "10.1103/PhysRevLett.111.025301",
language = "English",
volume = "111",
journal = "Physical Review Letters",
issn = "0031-9007",
number = "2",

}

Pechkis, H, Wrubel, J, Schwettmann, A, Griffin, P, Barnett, R, Tiesinga, E & Lett, P 2013, 'Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas' Physical Review Letters, vol. 111, no. 2, 025301. https://doi.org/10.1103/PhysRevLett.111.025301

Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas. / Pechkis, Hyewon; Wrubel, Jonathan; Schwettmann, Arne; Griffin, Paul; Barnett, Ryan; Tiesinga, Eite; Lett, Paul.

In: Physical Review Letters, Vol. 111, No. 2, 025301, 09.07.2013.

Research output: Contribution to journalLetter

TY - JOUR

T1 - Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas

AU - Pechkis, Hyewon

AU - Wrubel, Jonathan

AU - Schwettmann, Arne

AU - Griffin, Paul

AU - Barnett, Ryan

AU - Tiesinga, Eite

AU - Lett, Paul

N1 - http://arxiv.org/abs/1306.4255

PY - 2013/7/9

Y1 - 2013/7/9

N2 - We present experimental observations of coherent spin-population oscillations in a cold thermal, Bose gas of spin-1 23Na atoms. The population oscillations in a multi-spatial-mode thermal gas have the same behavior as those observed in a single-spatial-mode antiferromagnetic spinor Bose-Einstein condensate. We demonstrate this by showing that the two situations are described by the same dynamical equations, with a factor of 2 change in the spin-dependent interaction coefficient, which results from the change to particles with distinguishable momentum states in the thermal gas. We compare this theory to the measured spin population evolution after times up to a few hundreds of ms, finding quantitative agreement with the amplitude and period. We also measure the damping time of the oscillations as a function of magnetic field.

AB - We present experimental observations of coherent spin-population oscillations in a cold thermal, Bose gas of spin-1 23Na atoms. The population oscillations in a multi-spatial-mode thermal gas have the same behavior as those observed in a single-spatial-mode antiferromagnetic spinor Bose-Einstein condensate. We demonstrate this by showing that the two situations are described by the same dynamical equations, with a factor of 2 change in the spin-dependent interaction coefficient, which results from the change to particles with distinguishable momentum states in the thermal gas. We compare this theory to the measured spin population evolution after times up to a few hundreds of ms, finding quantitative agreement with the amplitude and period. We also measure the damping time of the oscillations as a function of magnetic field.

KW - Bose-Einstein condensate

KW - Spinor BEC

KW - cold thermal

UR - http://www.scopus.com/inward/record.url?scp=84880126594&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.111.025301

DO - 10.1103/PhysRevLett.111.025301

M3 - Letter

VL - 111

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 2

M1 - 025301

ER -

Pechkis H, Wrubel J, Schwettmann A, Griffin P, Barnett R, Tiesinga E et al. Spinor dynamics in an antiferromagnetic spin-1 thermal bose gas. Physical Review Letters. 2013 Jul 9;111(2). 025301. https://doi.org/10.1103/PhysRevLett.111.025301