Strongly correlated crystalline higher-order topological phases in two-dimensional systems: A coupled-wire study

Autor:	Jian-Hao Zhang
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Superconductivity (cond-mat.supr-con) Condensed Matter - Strongly Correlated Electrons Strongly Correlated Electrons (cond-mat.str-el) Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Superconductivity Mesoscale and Nanoscale Physics (cond-mat.mes-hall) FOS: Physical sciences
Popis:	Coupled-wire constructions have been widely applied to quantum Hall systems and symmetry-protected topological (SPT) phases. In this Letter, we use the coupled one-dimensional nonchiral Luttinger liquids with domain-wall structured mass terms as quantum wires to construct the crystalline higher-order topological superconductors (HOTSC) in two-dimensional interacting fermionic systems by two representative examples: $D_4$-symmetric class-D HOTSC and $C_4$-symmetric class-BD\1 HOTSC, with Majorana corner modes on the edge. Furthermore, based on the coupled-wire constructions, the quantum phase transition between different phases of 2D HOTSC by tuning the inter-wire couplings is investigated in a straightforward way. 4+epsilon pages, 5 figures, with Supplementary Materials; Published version
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18297fb911b71523cbc1de3746ce43ba http://arxiv.org/abs/2201.07023 Zobrazit plný text záznamu