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arXiv 1010.4547cond-mat.str-el
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强关联费米系统在量子临界点附近的经典行为。输运性质

Classical behavior of strongly correlated Fermi systems near a quantum critical point. Transport properties

V. A. Khodel, J. W. Clark, M. V. Zverev

摘要:

分析了强关联电子液体在固体中的低温动力学。结果表明,当多个带同时穿过费米面时,在态密度发散的量子临界点附近,会出现横向零声的软阻尼分支。抑制该分支的阻尼的发生是由于一种类似于在室温下影响固体中的声子模式的机制,在极低的温度下在强相关的费米系统中产生经典的传输机制。

英文摘要:

The low-temperature kinetics of the strongly correlated electron liquid inhabiting a solid is analyzed. It is demonstrated that a softly damped branch of transverse zero sound emerges when several bands cross the Fermi surface simultaneously near a quantum critical point at which the density of states diverges. Suppression of the damping of this branch occurs due to a mechanism analogous to that affecting the phonon mode in solids at room temperature, giving rise to a classical regime of transport at extremely low temperatures in the strongly correlated Fermi 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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