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arXiv 1012.2885cond-mat.quant-gascond-mat.str-el
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强相互作用费米气体中shock waves的观测

Observation of shock waves in a strongly interacting Fermi gas

James Joseph, John E. Thomas, Manas Kulkarni, Alexander G. Abanov

摘要:

我们研究两个强相互作用的原子费米气体云之间的碰撞。我们观察到异国情调的非线性流体动力学行为,区别于形成一个非常尖锐和稳定的密度峰的云碰撞和随后的演变成一个盒状。我们使用准一维流体动力学方程模拟这些碰撞的非线性动力学。我们的模拟与时间相关的密度分布的数据非常吻合,并提供了明确的证据,在这个普遍的量子流体动力学系统中的冲击波形成。

英文摘要:

We study collisions between two strongly interacting atomic Fermi gas clouds. We observe exotic nonlinear hydrodynamic behavior, distinguished by the formation of a very sharp and stable density peak as the clouds collide and subsequent evolution into a box-like shape. We model the nonlinear dynamics of these collisions using quasi-1D hydrodynamic equations. Our simulations of the time-dependent density profiles agree very well with the data and provide clear evidence of shock wave formation in this universal quantum hydrodynamic system.

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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