Topological phases and entanglement in real space for 1D SSH topological insulator: effects of first and second neighbor-hoppings

Autor:	Francisco Antonio Domínguez-Serna, Fernando Rojas, Leonardo A. Navarro-Labastida
Jazyk:	angličtina
Rok vydání:	2021
Předmět:	Quantum Physics Condensed Matter - Mesoscale and Nanoscale Physics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) General Physics and Astronomy FOS: Physical sciences Quantum Physics (quant-ph) Education
Popis:	The hybrid atoms-cell site entanglement in a one-dimensional Su-Schrieffer-Heeger (SSH) topological insulator with first and second neighbor hopping interaction in space representation of finite chains is analyzed. The geometric phase is calculated by the Resta electric polarization and the entanglement in the atomic basis by the Schmidt number. A relation between entanglement and the topological phase transitions (TPT) is given since the Schmidt number has critical points of maximal entangled (ME) states in the singularities of the geometrical phase. States with second-neighbors have higher entanglement than first-order hopping. The general conditions to produce ME hybrid Bell states and the localization-entanglement relation are given. 7 pages and 4 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab2ba61809c12b82906c6e2e5fde4244 http://arxiv.org/abs/2106.02756 Zobrazit plný text záznamu