Dissipatively dressed quasiparticles in boundary-driven integrable spin chains

Popkov, Vladislav (avtor), Zhang, Xin (avtor), Presilla, Carlo (avtor), Prosen, Tomaž (avtor)

The nonequilibrium steady state (NESS) of integrable spin chains experiencing strong boundary dissipation is accounted for by introducing quasiparticles with a renormalized—dissipatively dressed—dispersion relation. This allows us to evaluate the spectrum of the NESS in terms of the Bethe Ansatz equations for a related coherent system that has the same set of eigenstates, the so-called dissipation-projected Hamiltonian. We find explicit analytic expressions for the dressed energies of the XXX and XXZ models with effective, i.e., induced by the dissipation, diagonal boundary fields, which are U(1) invariant, as well as the XXZ and XYZ models with effective nondiagonal boundary fields. In all cases, the dissipative dressing generates an extra singularity in the dispersion relation, substantially altering the NESS spectrum with respect to the spectrum of the corresponding coherent model.

• Jezik: Angleški jezik
• Ključne besede: integrable systems, spin chains, open quantum systems
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: Str. 032211-1-032211-15
• Številčenje: Vol. 113, iss. 3
• PID: 20.500.12556/RUL-182826
• UDK: 530.145
• ISSN pri članku: 2469-9926
• DOI: 10.1103/2zbl-3twm
• COBISS.SI-ID: 279215875
• Datum objave v RUL: 25.05.2026

Gradivo je del revije

• Naslov: Physical review
• Založnik: American Physical Society
• ISSN: 2469-9926
• COBISS.SI-ID: 2996836

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: integrabilni sistemi, spinske verige, odprti kvantni sistemi