Effect of quasiparticle renormalization on the localization of the excitations of a one-dimensional Bose–Einstein condensate in a random potential

2011 ◽  
Vol 406 (10) ◽  
pp. 1906-1908 ◽  
Author(s):  
I. Avgin ◽  
D.L. Huber
Keyword(s):  
Random Potential ◽  
Einstein Condensate ◽  
One Dimensional ◽  
Bose Einstein Condensate ◽  
Bose Einstein

Localization of a two-component Bose–Einstein condensate in a one-dimensional random potential

2015 ◽  
Vol 459 ◽  
pp. 6-11 ◽  
Author(s):  
Kui-Tian Xi ◽  
Jinbin Li ◽  
Da-Ning Shi
Keyword(s):  
Random Potential ◽  
Einstein Condensate ◽  
One Dimensional ◽  
Bose Einstein Condensate ◽  
Two Component ◽  
Bose Einstein

scholarly journals Momentum correlations as signature of sonic Hawking radiation in Bose-Einstein condensates

2018 ◽  
Vol 4 (4) ◽  
Author(s):  
Alessandro Fabbri ◽  
Nicolas Pavloff
Keyword(s):  
Hawking Radiation ◽  
Momentum Space ◽  
Einstein Condensate ◽  
Measuring Process ◽  
One Dimensional ◽  
Bose Einstein Condensate ◽  
Momentum Correlation ◽  
Quantum Quenches ◽  
Effects Of Temperature ◽  
Bose Einstein

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.

scholarly journals Do we need a non-perturbative theory of Bose-Einstein condensation?

2021 ◽  
Vol 2103 (1) ◽  
pp. 012200
Author(s):  
K G Zloshchastiev
Keyword(s):  
Phase Contrast ◽  
Einstein Condensate ◽  
Einstein Condensation ◽  
One Dimensional ◽  
Quantum Fluid ◽  
Bose Einstein Condensate ◽  
Dipole Force ◽  
Theoretical Assumptions ◽  
Bose Einstein ◽  
Best Fit

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.

Effects of three-body atomic interaction and optical lattice on solitons in quasi-one-dimensional Bose-Einstein condensate

Pramana ◽  
2009 ◽  
Vol 72 (2) ◽  
pp. 445-450
Author(s):  
Sk. Golam Ali ◽  
B. Talukdar ◽  
Aparna Saha
Keyword(s):  
Optical Lattice ◽  
Einstein Condensate ◽  
Atomic Interaction ◽  
One Dimensional ◽  
Bose Einstein Condensate ◽  
Three Body ◽  
Bose Einstein

Solitons in One-Dimensional Bose–Einstein Condensate with Higher-Order Interactions

2017 ◽  
Vol 68 (5) ◽  
pp. 623 ◽  
Author(s):  
Ying Wang ◽  
Wei Wang ◽  
Shu-Yu Zhou
Keyword(s):  
Higher Order ◽  
Einstein Condensate ◽  
One Dimensional ◽  
Bose Einstein Condensate ◽  
Bose Einstein

scholarly journals Sonic black hole horizon dynamics for one dimensional Bose-Einstein condensate with quintic-order nonlinearity

2020 ◽  
Vol 16 ◽  
pp. 102982 ◽  
Author(s):  
Ying Wang ◽  
Quan Cheng ◽  
Li Zhao ◽  
Wen Wen ◽  
Wei Wang
Keyword(s):  
Black Hole ◽  
Einstein Condensate ◽  
Black Hole Horizon ◽  
One Dimensional ◽  
Bose Einstein Condensate ◽  
Bose Einstein

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
Keyword(s):  
Critical Phenomenon ◽  
Einstein Condensate ◽  
One Dimensional ◽  
Bose Einstein Condensate ◽  
Bose Einstein

MODULATION OF ORDER PARAMETER OF EXCITON BOSE-EINSTEIN CONDENSATE IN A RING

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3797-3802 ◽  
Author(s):  
S.-R. ERIC YANG ◽  
Q-HAN PARK ◽  
J. YEO
Keyword(s):  
Ground State ◽  
Order Parameter ◽  
Weak Magnetic Field ◽  
Random Potential ◽  
Einstein Condensate ◽  
Einstein Condensation ◽  
Random Potentials ◽  
Bose Einstein Condensate ◽  
The Mean ◽  
Bose Einstein

We have studied theoretically the Bose-Einstein condensation (BEC) of two-dimensional excitons in a ring with a random variation of the effective exciton potential along the circumference. We derive a nonlinear Gross-Pitaevkii equation (GPE) for such a condensate, which is valid even in the presence of a weak magnetic field. For several types of the random potentials our numerical solution of the ground state of the GPE displays a necklace-like structure. This is a consequence of the interplay between the random potential and a strong nonlinear repulsive term of the GPE. We have investigated how the mean distance between modulation peaks depends on properties of the random potentials.

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