Competition between pairing and tripling in one-dimensional fermions with coexistent s- and p-wave interactions

Autor:	Guo, Yixin, Tajima, Hiroyuki
Rok vydání:	2022
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Strongly Correlated Electrons Condensed Matter - Superconductivity Nuclear Theory
Zdroj:	Phys. Rev. B 107, 024511 (2023)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.107.024511
Popis:	We theoretically investigate in-medium two- and three-body correlations in one-dimensional two-component Fermi gases with coexistent even-parity s-wave and odd-parity p-wave interactions. We find the solutions of the stable in-medium three-body cluster states such as Cooper triple by solving the corresponding in-medium variational equations. We further feature the phase diagram consisting of the s- and p-wave Cooper pairing phase, and Cooper tripling phase, in the plane of s- and p-wave pairing strengths. The Cooper tripling phase dominates over the pairing phases when both s- and p-wave interactions are moderately strong. Comment: 7 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2210.07042 Zobrazit plný text záznamu View this record from Arxiv