Superdiffusive magnetization transport in the XX spin chain with nonlocal dephasing

Žnidarič, Marko (avtor)

We study a recently discussed XX spin chain with nonlocal dephasing [Y.-P. Wang etal., arXiv:2310.03069] in a steady-state boundary-driven setting, confirming superdiffusive magnetization transport in the thermodynamic limit. The emergence of superdiffusion is rather interesting as the Lindblad operators causing it are a coherent sum of two terms, each of which would separately cause diffusion. One therefore has a quantum phenomenon where a coherent sum of two diffusive terms results in superdiffusion. We also study perturbations of the superdiffusive model, finding that breaking the exact form of dissipators, as well as adding interactions to the XXchain, results in superdiffusion changing into diffusion.

• Jezik: Angleški jezik
• Ključne besede: condensed matter physics, statistical physics, quantum spin chains, nonequilibrium systems
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Različica publikacije: Recenzirani rokopis
• Datum objave: 05.02.2024
• Leto izida: 2024
• Št. strani: Str. 075105-1-075105-9
• Številčenje: Vol. 109, iss. 7
• PID: 20.500.12556/RUL-155056
• UDK: 538.9
• ISSN pri članku: 2469-9950
• DOI: 10.1103/PhysRevB.109.075105
• COBISS.SI-ID: 188677379
• Datum objave v RUL: 18.03.2024

ŽNIDARIČ, Marko, 2024, Superdiffusive magnetization transport in the XX spin chain with nonlocal dephasing. Physical review [na spletu]. 2024. Vol. 109, no. 7, p. 075105-1- 075105–9. [Dostopano 7 april 2025]. DOI 10.1103/PhysRevB.109.075105. Pridobljeno s: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=155056

Gradivo je del revije

• Naslov: Physical review
• Založnik: American Physical Society
• ISSN: 2469-9950
• COBISS.SI-ID: 2997348

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: fizika kondenzirane snovi, statistična fizika, kvantne spinske verige, neravnovesni sistemi

Projekti

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: J1-4385
• Naslov: Kvantna večdelčna fizika in nehermitskost

• Financer: ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
• Številka projekta: P1-0402
• Naslov: Matematična fizika