首页> 外文会议>Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011 >Non-equilibrium flows and superfluid turbulence in finite temperature dilute gas Bose-Einstein condensates
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Non-equilibrium flows and superfluid turbulence in finite temperature dilute gas Bose-Einstein condensates

机译:有限温度稀薄气体中的非平衡流动和超流体湍流-玻色-爱因斯坦冷凝物

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Dilute gas Bose-Einstein condensates (BECs) are an example of a superfluid, and exhibit many of the same phenomena as the strongly interacting superfluid helium. However, their isolation from the environment combined with their inhomogeneous density profiles make it difficult to observe some phenomena, such as the thermo-mechanical effect, in experiments. Here we perform dynamical simulations of a finite temperature Bose-Einstein condensate coupled to spatially separated heat and particle reservoirs to observe such non-equilibrium superfluid phenomena. We analyse the resulting steady-state non-equilibrium flows in the BEC, and consider the prospect of observing sustained superfluid turbulence.
机译:稀有气体玻色-爱因斯坦冷凝物(BEC)是超流体的一个例子,并且表现出许多与强相互作用的超流体氦相同的现象。但是,它们与环境隔离以及它们的密度分布不​​均匀,使得很难在实验中观察到某些现象,例如热机械效应。在这里,我们对有限温度的Bose-Einstein凝结水与空间分离的热量和颗粒储集层耦合进行动力学模拟,以观察这种非平衡超流体现象。我们分析了BEC中产生的稳态非平衡流,并考虑了观察到持续超流体湍流的前景。

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