论文标题

非平衡玻色系统的特征量

Characteristic quantities for nonequilibrium Bose systems

论文作者

Yukalov, V. I., Novikov, A. N., Yukalova, E. P., Bagnato, V. S.

论文摘要

本文讨论了哪些特征数量可以量化玻色系统的非平衡状态。在此类数量中,考虑了以下数量:有效温度,菲涅尔数和马赫数。通过在摇动陷阱中研究bose-Einstein凝结物来说明非平衡状态的建议分类,可以在其中区分八种不同的非平衡状态:弱非平衡态,无序细菌,涡旋环,涡旋环,涡流,涡旋线,涡旋线,涡流,涡流湍流,涡流湍流和波浪。非平衡状态是通过实验创建的,并通过求解非线性schrödinger方程来建模。

The paper discusses what characteristic quantities could quantify nonequilibrium states of Bose systems. Among such quantities, the following are considered: effective temperature, Fresnel number, and Mach number. The suggested classification of nonequilibrium states is illustrated by studying a Bose-Einstein condensate in a shaken trap, where it is possible to distinguish eight different nonequilibrium states: weak nonequilibrium, vortex germs, vortex rings, vortex lines, deformed vortices, vortex turbulence, grain turbulence, and wave turbulence. Nonequilibrium states are created experimentally and modeled by solving the nonlinear Schrödinger equation.

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