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Random spin textures in turbulent spinor Bose-Einstein condensates

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Title
Random spin textures in turbulent spinor Bose-Einstein condensates
Author(s)
Jong Heum Jung; Junghoon Lee; Jongmin Kim; Y. Shin
Publication Date
2023-10
Journal
Physical Review A, v.108, no.4
Publisher
American Physical Society
Abstract
We numerically investigate the stationary turbulent states of spin-1 Bose-Einstein condensates under continuous spin driving. We analyze the entanglement entropy and magnetization correlation function to demonstrate the isotropic nature of the intricate spin texture that is generated in the nonequilibrium steady state. We observe a -7/3 power-law behavior in the spin-dependent interaction energy spectrum. To gain further insight into the statistical properties of the spin texture, we introduce a spin state ensemble obtained through position projection, revealing its close resemblance to the Haar random ensemble for spin-1 systems. We also present the probability distribution of the spin vector magnitude in the turbulent condensate, which can be tested in experiments. Our numerical study highlights the characteristics of stationary turbulence in the spinor Bose-Einstein condensate system and confirms previous experimental findings [D. Hong, Phys. Rev. A 108, 013318 (2023)10.1103/PhysRevA.108.013318]. © 2023 American Physical Society.
URI
https://pr.ibs.re.kr/handle/8788114/14485
DOI
10.1103/PhysRevA.108.043309
ISSN
2469-9926
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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