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arXiv 1102.2858cond-mat.str-elhep-thmath-phmath.MP
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极相关费米液体

Extremely Correlated Fermi Liquids

B. Sriram Shastry

摘要:

本文提出了含$U\to \infty$的极端关联费米液体(ECFL)理论。该液体具有进一步被封装的潜在费米液体(FL)格林函数。该理论导致两个平行的方程层次,允许迭代近似在一定的参数。光谱函数的初步结果显示了一个广泛的背景和一个独特的$T$依赖左偏。FL格林函数的平均非弹性是一个重要的能量尺度$Δ(\vec{k},x)$,它对光电子能谱有着深刻的影响。一个二元性被确定,其中一个明显的损失的相干性的ECFL的结果从一个过于尖锐的FL。

英文摘要:

We present the theory of an extremely correlated Fermi liquid (ECFL) with $U\to \infty$. This liquid has an underlying Fermi liquid (FL) Greens function that is further caparisoned. The theory leads to two parallel hierarchies of equations that permit iterative approximations in a certain parameter. Preliminary results for the spectral functions display a broad background and a distinct $T$ dependent left skew. An important energy scale $Δ(\vec{k},x)$ emerges as the average inelasticity of the FL Greens function, and influences the photoemission spectra profoundly. A duality is identified wherein an apparent loss of coherence of the ECFL results from an excessively sharp FL.

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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