2-PARTICLE SPECTRAL PROPERTIES OF GENERALIZED LANDAU LIQUIDS

被引：38

作者：

CARMELO, JMP ^{[1
]}

HORSCH, P ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.68.871

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The matrix elements of the up-spin and down-spin electronic density fluctuations taken between the ground state and the gapless elementary excitations of the Hubbard chain in a magnetic field are obtained. The small-omega charge and spin conductivity spectra are derived. Our results clarify the physical character of the pseudoparticles of the new Landau liquid theory, and identify them as the transport carriers. A generalized adiabatic continuity principle concerning the elementary excitations at finite magnetic field in the limit where momentum and frequency tend to zero is established.

引用

页码：871 / 874

页数：4

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