Flux Magnetism in a Strongly Interacting Dipolar Lattice Supersolid under Tunable Gauge Fields
Year: 2026
Authors: Miotto M., Lombardi P., Ferioli G., Fraxanet J., Lewenstein M., Tanzi L., Barbiero L.
Autors Affiliation: Tech Univ Berlin, Inst Phys & Astron, Hardenbergstr 36, D-10623 Berlin, Germany; CNR, Ist Nazl Ottica, Sede Secondaria Sesto Fiorentino, Sesto Fiorentino, Italy; Univ Firenze, European Lab Nonlinear Spect LENS, Florence, Italy; Univ Florence, Dept Phys & Astron, I-50019 Sesto Fiorentino, Italy; Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Avinguda Carl Friedrich Gauss 3, Castelldefels 08860, Barcelona, Spain; ICREA, Passeig Lluis Companys 23, Barcelona 08010, Spain; Politecn Torino, Inst Condensed Matter Phys & Complex Syst, DISAT, I-10129 Turin, Italy.
Abstract: Supersolidity and magnetism are fundamental phenomena characterizing strongly correlated matter. Here we unveil a mechanism that directly connects these two regimes and can be experimentally accessed in ultracold atomic systems. Specifically, we exploit the distinctive properties of magnetic lanthanide atoms trapped in a one-dimensional antimagic wavelength optical lattice. This platform enables a realistic implementation of a triangular Bose-Hubbard ladder featuring two key ingredients: strong long-range interactions and tunable gauge fields. Owing to these properties, our numerical analysis reveals a robust lattice supersolid regime with finite fluxes in each triangular plaquette. Remarkably, we show that the density modulation of the supersolid phase and a finite gauge field induce magnetic ordering of the fluxes, forming ferromagnetic and ferrimagnetic patterns. Our results thus reveal a quantum effect that bridges supersolidity and magnetism.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 137 (4) Pages from: 43401-1 to: 43401-8
More Information: We thank N. Baldelli, C. Cabrera, S. Dhar, A. Eckardt, F. Ferlaino, M. Landini, M. Mark, G. Modugno, L. Santos, and G. Valtolina for discussions. M. M., L. T., and L. B. acknowledge funding from the Italian MUR (PRIN DiQut Grant No. 2022523NA7). M. M. acknowledges funding from the Deutsche Forschungs gemeinschaft (DFG, German Research Foundation) via the Research Unit FOR 5688 (Project No. 521530974). P. L., G. F., and L. T. acknowledge funding from the European Union (European Research Council, SUPERSOLIDS, Grant No. 101055319). M. L. acknowledges support from: European Research Council AdG NOQIA; MCIN/AEI [PGC2018-0910.13039/501100011033, CEX2019000910-S /10.13039/501100011033, Plan National FIDEUA PID2019-106901 GB-I00, Plan National STAMEENA PID2022-139099NB I00, project funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR; (PRTRC17.I1), FPI]; QUANTERA DYNAMITE PCI2022132919, the QuantERA II Programme cofunded by European Union’s Horizon 2020 program under Grant Agreement No. 101017733; the Ministry for Digital Transformation and of Civil Service of the Spanish Government through the QUANTUM ENIA project call-Quantum Spain project, and by the European Union through the Recovery, Transformation and Resilience Plan NextGenerationEU within the framework of the Digital Spain 2026 Agenda; Fundacio Cellex; Fundacio Mir-Puig; Generalitat de Catalunya, European Social Fund FEDER and CERCA program; Barcelona Supercomputing Center MareNostrum (FI-2023-3-0024); funded by the European Union; HORIZON-CL4-2022-QUANTUM-02-SGA PASQuan-S2.1, 101113690, EU Horizon 2020 FETOPEN OPTOlogic, Grant No. 899794, QU-ATTO, 101168628, the EU Horizon Europe Program (this project has received funding from the European Union’s Horizon Europe research and innovation program under Grant Agreement No. 101080086 NeQST, Grant Agreement No. 101080086 -NeQST); ICFO Internal QuantumGaudi project.KeyWords: Topological Quantum Matter; Hubbard-model; Edge States; Gas; System; Phase; AtomsDOI: 10.1103/tbp3-7rh3
