1995/10/31 by David R. Clarke, David Clarke, Clarke, David +2
Materials Science · Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9510168
23 pages, RevTeX; to appear in Proceedings of the Second International Workshop on Low Energy Excitations in Solids (Czech Republic, June 1995)
arxiv created 1995/10/31 · openalex publication_date 1995/10/31 · arxiv updated 2009/11/30 · openalex created_date 2025/10/24 · openalex updated_date 2026/07/28
We present a pedagogical account of our approach to the problem of Luttinger\nliquids coupled by interliquid single particle hopping. It is shown that the\nkey issue is that of coherence/incoherence of interliquid hopping, and not of\nrelevance/irrelevance in a renormalization group sense. A clear signal of\ncoherence, present in the case of coupled Fermi liquids, is absent for\nLuttinger liquids, and we argue for the existence of an incoherent regime when\nthe interliquid hopping rate is sufficiently small. The problem is relevant to\nany sufficiently anisotropic, strongly correlated metal, and in particular to\nunderstanding the anomalous c-axis conductivity in the cuprate superconductors,\nand the physics of the quasi-1D organic conductors.\n