Impenetrable SU(N) fermions in one-dimensional lattices

Zhang, Yicheng (avtor), Vidmar, Lev (avtor), Rigol, Marcos (avtor)

We study SU(N) fermions in the limit of infinite on-site repulsion between all species. We focus on states in which every pair of consecutive fermions carries a different spin flavor. Since the particle order cannot be changed (because of the infinite on-site repulsion) and contiguous fermions have a different spin flavor, we refer to the corresponding constrained model as the model of distinguishable quantum particles. We introduce an exact numerical method to calculate equilibrium one-body correlations of distinguishable quantum particles based on a mapping onto noninteracting spinless fermions. In contrast to most many-body systems in one dimension, which usually exhibit either power-law or exponential decay of off-diagonal one-body correlations with distance, distinguishable quantum particles exhibit a Gaussian decay of one-body correlations in the ground state, while finite-temperature correlations are well described by stretched exponential decay.

• Jezik: Angleški jezik
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2018
• Št. strani: Str. 042129-1-042129-12
• Številčenje: Vol. 98, no. 4
• PID: 20.500.12556/RUL-107410
• UDK: 53
• ISSN pri članku: 2469-9926
• DOI: 10.1103/PhysRevA.98.042129
• COBISS.SI-ID: 32045863
• Datum objave v RUL: 11.04.2019

Gradivo je del revije

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

Projekti

• Financer: EC - European Commission
• Program financ.: H2020
• Številka projekta: 694544
• Naslov: Open many-body non-equilibrium systems
• Akronim: OMNES