Results 21 to 30 of about 31,438 (162)
Kinetics of Strongly Nonequilibrium Magnon Gas Leading to Bose-Einstein Condensation [PDF]
Kinetic equations describing nonequilibrium magnon gas under the action of parametric pumping are considered with an account of kinetic instability processes. These processes strongly influence condition of magnon Bose-Einstein condensate formation.
D.V. Slobodianiuk, O.V. Prokopenko
doaj +1 more source
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
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Bose-Einstein Condensation of Long-Lifetime Polaritons in Thermal Equilibrium [PDF]
Exciton-polaritons in semiconductor microcavities have been used to demonstrate quantum effects such as Bose-Einstein condensation, superfluity, and quantized vortices.
Liu, Gangqiang +8 more
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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
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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
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Competition between Bose Einstein Condensation and spin dynamics [PDF]
We study the impact of spin-exchange collisions on the dynamics of Bose-Einstein condensation, by rapidly cooling a chromium multi-component Bose gas.
Brewczyk, Miroslaw +6 more
core +3 more sources
Bose–Einstein condensation in the Rindler space
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
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Machine-learning-accelerated Bose-Einstein condensation
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
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A Dicke Type Model for Equilibrium BEC Superradiance [PDF]
We study the effect of electromagnetic radiation on the condensate of a Bose gas. In an earlier paper we considered the problem for two simple models showing the cooperative effect between Bose-Einstein condensation and superradiance.
Andreev A V +10 more
core +5 more sources
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
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