Effects of defects in the XY chain with frustrated boundary conditions

Znanstveni rad - Izvorni znanstveni rad

• Autor: Gianpaolo Torre
• Autor: Vanja Marić
• Autor: Fabio Franchini
• Autor: Salvatore Marco Giampaolo
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

It has been recently proven that new types of bulk local order can ensue due to frustrated boundary condition, that is, periodic boundary conditions with an odd number of lattice sites and antiferromagnetic interactions. For the quantum XY chain in zero external fields, the usual antiferromagnetic order has been found to be replaced either by a mesoscopic ferromagnet or by an incommensurate AFM order. In this work we examine the resilience of these new types of orders against a defect that breaks the translational symmetry of the model. We find that, while a ferromagnetic defect restores the traditional, staggered order, an AFM one stabilizes the incommensurate order. The robustness of the frustrated order to certain kinds of defects paves the way for its experimental observability.

• Ključne riječi (engleski): frustration; defect
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical Review B
• Brojčani podaci: vol. 103, br. 1, 014429
• p-ISSN: 2469-9950
• e-ISSN: 2469-9969
• DOI: https://doi.org/10.1103/PhysRevB.103.014429
• URN:NBN: urn:nbn:hr:217:897588
• Datum objave publikacije: 2021
• Projekt: Šifra: KK.01.1.1.01.0004; Naziv (engleski): QuantiXLie Center of Excellence; Kratica: QuantiXLie; Voditelj: Hrvoje Buljan; Pravna nadležnost: eu; Financijer: Croatian Government and European Union; Linija financiranja: European Regional Development Fund - the Competitiveness and Cohesion Operational Programme
• Projekt: Šifra: IP-2016-06-3347; Naziv (engleski): Novel Characterizations of Classical and Quantum Many-Body Systems (ManyBodyCharacteriza; Kratica: ManyBodyCharacteriza; Voditelj: Fabio Franchini; Pravna nadležnost: Hrvatska; Financijer: HRZZ; Linija financiranja: IP
• Projekt: Šifra: IP-2019-04-3321; Naziv (hrvatski): Frustrirani kompleksni sustavi; Naziv (engleski): Frustrated Complex Systems; Kratica: FCS; Voditelj: Salvatore Marco Giampaolo; Pravna nadležnost: Hrvatska; Financijer: HRZZ; Linija financiranja: Nema
• URL dokumenta: https://link.aps.org/doi/10.1103/PhysRevB.103.014429
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: © 2021 American Physical Society. Received 28 August 2020; Accepted 5 January 2021; Published 19 January 2021.
• Datum i vrijeme pohrane: 2023-08-06 18:36:11