scholarly journals Emergent critical phenomenon in spin- 12 ferromagnetic-leg ladders: Quasi-one-dimensional Bose–Einstein condensate

2019 ◽  
Vol 100 (5) ◽  
Author(s):  
Y. Kono ◽  
S. Kittaka ◽  
H. Yamaguchi ◽  
Y. Hosokoshi ◽  
T. Sakakibara

2018 ◽  
Vol 4 (4) ◽  
Author(s):  
Alessandro Fabbri ◽  
Nicolas Pavloff

We study the two-body momentum correlation signal in a quasi one dimensional Bose-Einstein condensate in the presence of a sonic horizon. We identify the relevant correlation lines in momentum space and compute the intensity of the corresponding signal. We consider a set of different experimental procedures and identify the specific issues of each measuring process. We show that some inter-channel correlations, in particular the Hawking quantum-partner one, are particularly well adapted for witnessing quantum non-separability, being resilient to the effects of temperature and/or quantum quenches.



2021 ◽  
Vol 2103 (1) ◽  
pp. 012200
Author(s):  
K G Zloshchastiev

Abstract We recall the experimental data of one-dimensional axial propagation of sound near the center of the Bose-Einstein condensate cloud, which used the optical dipole force method of a focused laser beam and rapid sequencing of nondestructive phase-contrast images. We reanalyze these data within the general quantum fluid framework but without model-specific theoretical assumptions; using the standard best fit techniques. We demonstrate that some of their features cannot be explained by means of the perturbative two-body approximation and Gross-Pitaevskii model, and conjecture possible solutions.







2020 ◽  
Vol 16 ◽  
pp. 102982 ◽  
Author(s):  
Ying Wang ◽  
Quan Cheng ◽  
Li Zhao ◽  
Wen Wen ◽  
Wei Wang


2012 ◽  
Vol 57 (5) ◽  
pp. 789-794 ◽  
Author(s):  
Zhan-Jin Yang ◽  
Zhao-Liang Chai ◽  
Chen-Xu Li ◽  
Xiao-Dong Ma


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Qing Sun ◽  
Jie Hu ◽  
Lin Wen ◽  
W.-M. Liu ◽  
G. Juzeliūnas ◽  
...  


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