Results 11 to 20 of about 5,958 (184)

Bose–Einstein condensation in the Rindler space

open access: yesPhysics Letters B, 2015
Based on the Unruh effect, we calculate the critical acceleration of the Bose–Einstein condensation in a free complex scalar field at finite density in the Rindler space.
Shingo Takeuchi
doaj   +2 more sources

Temperature of the hot α-source: A guidance to probe the Bose-Einstein condensation of α clusters in the heavy-ion collision

open access: yesPhysics Letters B, 2023
Recent experimental efforts were made to explore the Bose-Einstein condensation in multi-α system using the heavy-ion collisions. This Letter provides an explanation why no signatures were observed and a guidance for future experiments. More precisely, a
Jun Su, Long Zhu
doaj   +1 more source

Repulsively diverging gradient of the density functional in the reduced density matrix functional theory

open access: yesNew Journal of Physics, 2021
The reduced density matrix functional theory (RDMFT) is a remarkable tool for studying properties of ground states of strongly interacting quantum many body systems.
Tomasz Maciążek
doaj   +1 more source

Fragmentation, domain formation and atom number fluctuations of a two-species Bose–Einstein condensate in an optical lattice

open access: yesNew Journal of Physics, 2012
We theoretically study the loading of a two-species Bose-Einstein condensate to an optical lattice in a tightly-confined one-dimensional trap. Due to quantum fluctuations the relative inter and intra species phase coherence between the atoms and the on-site atom number fluctuations are reduced in the miscible regime.
Shrestha, Uttam, Ruostekoski, Janne
openaire   +4 more sources

Machine-learning-accelerated Bose-Einstein condensation

open access: yesPhysical Review Research, 2022
Machine learning is emerging as a technology that can enhance physics experiment execution and data analysis. Here, we apply machine learning to accelerate the production of a Bose-Einstein condensate (BEC) of ^{87}Rb atoms by Bayesian optimization of up
Zachary Vendeiro   +7 more
doaj   +1 more source

Study of Attractive Nonlinearity by 1-D Nonlinear Schrödinger Equation in the Bose–Einstein Condensate

open access: yesJournal of Bangladesh Academy of Sciences, 1970
The work represents and investigates the stationary solutions of the one-dimensional Non-linear Schrödinger Equation (NLSE), for attractive non-linearity, in the Bose-Einstein condensates (BEC) under the box boundary condition and calculates the characteristics of internal modes of bright solitons (eigen modes of small perturbation of the condensate ...
MH Rashid   +4 more
openaire   +2 more sources

Coherence and Optical Emission from Bilayer Exciton Condensates

open access: yesAdvances in Condensed Matter Physics, 2011
Experiments aimed at demonstrating Bose-Einstein condensation of excitons in two types of experiments with bilayer structures (coupled quantum wells) are reviewed, with an emphasis on the basic effects. Bose-Einstein condensation implies the existence of
D. W. Snoke
doaj   +1 more source

Color confinement and Bose-Einstein condensation

open access: yesJournal of High Energy Physics, 2021
We propose a unified description of two important phenomena: color confinement in large-N gauge theory, and Bose-Einstein condensation (BEC). We focus on the confinement/deconfinement transition characterized by the increase of the entropy from N 0 to N ...
Masanori Hanada   +2 more
doaj   +1 more source

Bose–Einstein condensation on curved manifolds

open access: yesNew Journal of Physics, 2020
Here we describe a weakly interacting Bose gas on a curved smooth manifold, which is embedded in the three-dimensional Euclidean space. To this end we start by considering a harmonic trap in the normal direction of the manifold, which confines the three ...
Natália S Móller   +3 more
doaj   +1 more source

The effect of non-local derivative on Bose-Einstein condensation

open access: yesCondensed Matter Physics, 2021
In this paper, we study the effect of non-local derivative on Bose-Einstein condensation. Firstly, we consider the Caputo-Fabrizio derivative of fractional order α to derive the eigenvalues of non-local Schrödinger equation for a free particle in a 3D ...
F.E. Bouzenna, M.T. Meftah, M. Difallah
doaj   +1 more source

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