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arXiv 0906.2264cond-mat.quant-gas
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混合超冷原子中的熵交换

Entropy exchange in a mixture of ultracold atoms

J. Catani, G. Barontini, G. Lamporesi, F. Rabatti, G. Thalhammer, F. Minardi, S. Stringari, M. Inguscio

摘要:

实验研究了超低温下两种不同原子量子气体之间的熵传递。利用物种选择性捕获潜力,我们能够在存在第二辅助气体的情况下控制一种目标气体的熵。用这种方法,我们驱动的目标气体进入简并区在控制温度的条件下,通过转移熵的辅助气体。我们设想,我们的方法可能是有用的,以实现新的量子相位所需的低熵和测量深光晶格中的原子的温度。我们验证了这两个物种在一维晶格中的热化。

英文摘要:

We investigate experimentally the entropy transfer between two distinguishable atomic quantum gases at ultralow temperatures. Exploiting a species-selective trapping potential, we are able to control the entropy of one target gas in presence of a second auxiliary gas. With this method, we drive the target gas into the degenerate regime in conditions of controlled temperature by transferring entropy to the auxiliary gas. We envision that our method could be useful both to achieve the low entropies required to realize new quantum phases and to measure the temperature of atoms in deep optical lattices. We verified the thermalization of the two species in a 1D lattice.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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