Non-Fermi Liquids, Strange Metals and Quasi-metaparticles

Autor:	Barnes, Edwin, Heremans, J. J., Minic, Djordje
Rok vydání:	2021
Předmět:	Condensed Matter - Strongly Correlated Electrons High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	We introduce the concept of quasi-metaparticles based on the theory of metaparticles, the zero modes of the metastring. We apply the concept of quasi-metaparticles to the problem of non-Fermi liquids and the properties of strange metals. In particular, we point out that the quasi-metaparticle Green's function interpolates between the canonical quasi-particle Green's function and the result found in the context of the SYK model, which presents an exactly solvable model without quasiparticles. The linear dependence of resistivity with temperature is reproduced in the SYK limit. Also, the Cooper mechanism is possible in the quasi-metaparticle case. Finally, the new parameter that characterizes quasi-metaparticles can be extracted from ARPES data. Thus, the quasi-metaparticle could be a useful new concept in the study of strange metals and high-temperature superconductivity. Comment: 5 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2111.10479 Zobrazit plný text záznamu View this record from Arxiv