Emergent SU(2)$_1$ conformal symmetry in the spin-1/2 Kitaev-Gamma chain with a Dzyaloshinskii-Moriya interaction

Autor:	Yang, Wang, Nocera, Alberto, Xu, Chao, Adhikary, Arnab, Affleck, Ian
Rok vydání:	2022
Předmět:	Condensed Matter - Strongly Correlated Electrons
Druh dokumentu:	Working Paper
Popis:	We study the one-dimensional spin-1/2 Kitaev-Gamma model with a bond-dependent Dzyaloshinskii-Moriya (DM) interaction, which can be induced by an electric field applied in the third direction where the first and second directions refer to the two bond directions in the model. By a combination of field theory and symmetry analysis, an extended gapless phase with an emergent SU(2)$_1$ conformal symmetry is found in the phase diagram of the spin-1/2 Kitaev-Gamma-DM chain. The analytic predictions are in good agreements with numerical results obtained from density matrix renormalization group simulations. Comment: 12 pages, 9 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2204.13810 Zobrazit plný text záznamu View this record from Arxiv