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arXiv 1403.7855cond-mat.quant-gas
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偶极链状晶体的多体形成与解离

Many-Body Formation and Dissociation of a Dipolar Chain Crystal

Jhih-Shih You, Daw-Wei Wang

摘要:

我们提出了一个实验方案,以有效地组装具有均匀长度的偶极气体链的多层系统。所得到的偶极链可以形成链状晶体,其体系温度易于由初始晶格势和加工过程中的外场强度控制。当链密度增加时,我们进一步观察到链晶体向二维晶体分层解离的二级量子相变,其中量子涨落主导经典能量,压缩性在相边界处发散。讨论了这种偶极链晶体及其量子相变的实验意义。

英文摘要:

We propose an experimental scheme to effectively assemble chains of dipolar gases with an uniform length in a multi-layer system. The obtained dipolar chains can form a chain crystal with the system temperature easily controlled by the initial lattice potential and the external field strength during process. When the density of chains increases, we further observe a second order quantum phase transition for the chain crystal to be dissociated toward layers of 2D crystal, where the quantum fluctuation dominates the classical energy and the compressibility diverges at the phase boundary. Experimental implication of such dipolar chain crystal and its quantum phase transition is also discussed.

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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