Stochastic growth dynamics and composite defects in quenched immiscible binary condensates

I. K. Liu, R. W. Pattinson, T. P. Billam, S. A. Gardiner, S. L. Cornish, T. M. Huang, W. W. Lin, S. C. Gou, N. G. Parker, N. P. Proukakis

研究成果: Article

16 引文 (Scopus)

摘要

We study the sensitivity of coupled condensate formation dynamics on the history of initial stochastic domain formation in the context of instantaneously quenched elongated harmonically trapped immiscible two-component atomic Bose gases. The spontaneous generation of defects in the fastest condensing component, and subsequent coarse-graining dynamics, can lead to a deep oscillating microtrap into which the other component condenses, thereby establishing a long-lived composite defect in the form of a dark-bright solitary wave. We numerically map out diverse key aspects of these competing growth dynamics, focusing on the role of shot-to-shot fluctuations and global parameter changes (initial state choices, quench parameters, and condensate growth rates), with our findings also qualitatively confirmed by realistic finite-duration quenches. We conclude that phase-separated structures observable on experimental time scales are likely to be metastable states whose form is influenced by the stability and dynamics of the spontaneously emerging dark-bright solitary wave.

原文English
文章編號023628
期刊Physical Review A
93
發行號2
DOIs
出版狀態Published - 2016 二月 18

指紋

condensates
composite materials
defects
shot
solitary waves
condensing
metastable state
emerging
histories
sensitivity
gases

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

引用此文

Liu, I. K., Pattinson, R. W., Billam, T. P., Gardiner, S. A., Cornish, S. L., Huang, T. M., ... Proukakis, N. P. (2016). Stochastic growth dynamics and composite defects in quenched immiscible binary condensates. Physical Review A, 93(2), [023628]. https://doi.org/10.1103/PhysRevA.93.023628
Liu, I. K. ; Pattinson, R. W. ; Billam, T. P. ; Gardiner, S. A. ; Cornish, S. L. ; Huang, T. M. ; Lin, W. W. ; Gou, S. C. ; Parker, N. G. ; Proukakis, N. P. / Stochastic growth dynamics and composite defects in quenched immiscible binary condensates. 於: Physical Review A. 2016 ; 卷 93, 編號 2.
@article{92a2ec811de445dabb972abc9c824962,
title = "Stochastic growth dynamics and composite defects in quenched immiscible binary condensates",
abstract = "We study the sensitivity of coupled condensate formation dynamics on the history of initial stochastic domain formation in the context of instantaneously quenched elongated harmonically trapped immiscible two-component atomic Bose gases. The spontaneous generation of defects in the fastest condensing component, and subsequent coarse-graining dynamics, can lead to a deep oscillating microtrap into which the other component condenses, thereby establishing a long-lived composite defect in the form of a dark-bright solitary wave. We numerically map out diverse key aspects of these competing growth dynamics, focusing on the role of shot-to-shot fluctuations and global parameter changes (initial state choices, quench parameters, and condensate growth rates), with our findings also qualitatively confirmed by realistic finite-duration quenches. We conclude that phase-separated structures observable on experimental time scales are likely to be metastable states whose form is influenced by the stability and dynamics of the spontaneously emerging dark-bright solitary wave.",
author = "Liu, {I. K.} and Pattinson, {R. W.} and Billam, {T. P.} and Gardiner, {S. A.} and Cornish, {S. L.} and Huang, {T. M.} and Lin, {W. W.} and Gou, {S. C.} and Parker, {N. G.} and Proukakis, {N. P.}",
year = "2016",
month = "2",
day = "18",
doi = "10.1103/PhysRevA.93.023628",
language = "English",
volume = "93",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "2",

}

Liu, IK, Pattinson, RW, Billam, TP, Gardiner, SA, Cornish, SL, Huang, TM, Lin, WW, Gou, SC, Parker, NG & Proukakis, NP 2016, 'Stochastic growth dynamics and composite defects in quenched immiscible binary condensates', Physical Review A, 卷 93, 編號 2, 023628. https://doi.org/10.1103/PhysRevA.93.023628

Stochastic growth dynamics and composite defects in quenched immiscible binary condensates. / Liu, I. K.; Pattinson, R. W.; Billam, T. P.; Gardiner, S. A.; Cornish, S. L.; Huang, T. M.; Lin, W. W.; Gou, S. C.; Parker, N. G.; Proukakis, N. P.

於: Physical Review A, 卷 93, 編號 2, 023628, 18.02.2016.

研究成果: Article

TY - JOUR

T1 - Stochastic growth dynamics and composite defects in quenched immiscible binary condensates

AU - Liu, I. K.

AU - Pattinson, R. W.

AU - Billam, T. P.

AU - Gardiner, S. A.

AU - Cornish, S. L.

AU - Huang, T. M.

AU - Lin, W. W.

AU - Gou, S. C.

AU - Parker, N. G.

AU - Proukakis, N. P.

PY - 2016/2/18

Y1 - 2016/2/18

N2 - We study the sensitivity of coupled condensate formation dynamics on the history of initial stochastic domain formation in the context of instantaneously quenched elongated harmonically trapped immiscible two-component atomic Bose gases. The spontaneous generation of defects in the fastest condensing component, and subsequent coarse-graining dynamics, can lead to a deep oscillating microtrap into which the other component condenses, thereby establishing a long-lived composite defect in the form of a dark-bright solitary wave. We numerically map out diverse key aspects of these competing growth dynamics, focusing on the role of shot-to-shot fluctuations and global parameter changes (initial state choices, quench parameters, and condensate growth rates), with our findings also qualitatively confirmed by realistic finite-duration quenches. We conclude that phase-separated structures observable on experimental time scales are likely to be metastable states whose form is influenced by the stability and dynamics of the spontaneously emerging dark-bright solitary wave.

AB - We study the sensitivity of coupled condensate formation dynamics on the history of initial stochastic domain formation in the context of instantaneously quenched elongated harmonically trapped immiscible two-component atomic Bose gases. The spontaneous generation of defects in the fastest condensing component, and subsequent coarse-graining dynamics, can lead to a deep oscillating microtrap into which the other component condenses, thereby establishing a long-lived composite defect in the form of a dark-bright solitary wave. We numerically map out diverse key aspects of these competing growth dynamics, focusing on the role of shot-to-shot fluctuations and global parameter changes (initial state choices, quench parameters, and condensate growth rates), with our findings also qualitatively confirmed by realistic finite-duration quenches. We conclude that phase-separated structures observable on experimental time scales are likely to be metastable states whose form is influenced by the stability and dynamics of the spontaneously emerging dark-bright solitary wave.

UR - http://www.scopus.com/inward/record.url?scp=84959496381&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959496381&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.93.023628

DO - 10.1103/PhysRevA.93.023628

M3 - Article

AN - SCOPUS:84959496381

VL - 93

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 2

M1 - 023628

ER -

Liu IK, Pattinson RW, Billam TP, Gardiner SA, Cornish SL, Huang TM 等. Stochastic growth dynamics and composite defects in quenched immiscible binary condensates. Physical Review A. 2016 2月 18;93(2). 023628. https://doi.org/10.1103/PhysRevA.93.023628