Quantum vortices in curved geometries
Year: 2024
Authors: Tononi A., Salasnich L., Yakimenko A.
Autors Affiliation: Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Ave Carl Friedrich Gauss 3, Castelldefels 08860, Barcelona, Spain; Galileo Galilei Univ Padova, Dipartimento Fis & Astron, Via Marzolo 8, I-35131 Padua, Italy; INFN, Sez Padova, Via Marzolo 8, I-35131 Padua, Italy; Consiglio Nazl Ric CNR, Ist Nazl Ott INO, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy; Taras Shevchenko Natl Univ Kyiv, Dept Phys, 64-13 Volodymyrska St, UA-01601 Kyiv, Ukraine.
Abstract: The control over the geometry and topology of quantum systems is crucial for advancing novel quantum technologies. This work provides a synthesis of recent insights into the behavior of quantum vortices within atomic Bose-Einstein condensates (BECs) subject to curved geometric constraints. We highlight the significant impact of the curvature on the condensate density and phase distribution, particularly in quasi-one-dimensional waveguides for different angular momentum states. An engineered periodic transport of the quantized vorticity between density-coupled ring-shaped condensates is discussed. The significant role of curved geometry in shaping the dynamics of rotational Josephson vortices in long atomic Josephson junctions is illustrated for the system of vertically stacked toroidal condensates. Different methods for the controlled creation of rotational Josephson vortices in coupled ring systems are described in the context of the formation of long-lived vortex configurations in shell-shaped BECs with cylindrical geometry. Future directions of explorations of vortices in curved geometries with implications for quantum information processing and sensing technologies are discussed.
Journal/Review: AVS QUANTUM SCIENCE
Volume: 6 (3) Pages from: 30502-1 to: 30502-13
More Information: A.T. acknowledges support from ANR grant Droplets under No. ANR-19-CE30-0003-02 and from the EU Quantum Flagship (PASQuanS2.1, 101113690). A.Y. acknowledges support from the BIRD Project Ultracold atoms in curved geometries of the University of Padova. L.S. is partially supported by the European Union-NextGenerationEU within the National Center for HPC, Big Data and Quantum Computing (Project No. CN00000013, CN1 Spoke 10: Quantum Computing) and by the European Quantum Flagship Project PASQuanS 2. L.S. and A.Y. are also partially supported by the Iniziativa Specifica Quantum of Istituto Nazionale di Fisica Nucleare, the Project Frontiere Quantistiche within the 2023 funding programme Dipartimenti di Eccellenza of the Italian Ministry for Universities and Research, and by the PRIN 2022 Project Quantum Atomic Mixtures: Droplets, Topological Structures, and Vortices. ICFO group acknowledges support from Europea Research Council AdG NOQIA; MCIN/AEI (PGC2018-0910.13039/501100011033, EX2019-000910-S/10.13039/501100011033, Plan National FIDEUA PID2019-106901GB-I00, Plan National STAMEENA PID2022-139099NB, I00, project funded by MCIN/AEI/10.13039/501100011033 and by the European Union NextGenerationEU/PRTR (PRTR-C17.I1), FPI); QUANTERA MAQS PCI2019-111828-2); QUANTERA DYNAMITE PCI2022-132919, QuantERA II Programme co-funded by European Union’s Horizon 2020 program under Grant Agreement No. 101017733); 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, AGAUR Grant No. 2021 SGR 01452, QuantumCAT U16-011424, co-funded by ERDF Operational Program of Catalonia 2014-2020); Barcelona Supercomputing Center MareNostrum (FI-2023-1-0013); Funded by the European Union. Views and opinions expressed are, however, those of the author(s) only and do not neces sarily reflect those of the European Union, European Commission, European Climate, Infrastructure and Environment Executive Agency (CINEA), or any other granting authority. Neither the European Union nor any granting authority can be held responsible for them (EU Quantum Flagship PASQuan S2.1, 101113690, EU Horizon 2020 FET-OPEN OPTOlogic, Grant No. 899794), 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 NeQSTGrant Agreement No. 101080086-NeQST); ICFO Internal QuantumGaudi project; European Union’s Horizon 2020 program under the Marie Sklodowska-Curie Grant Agreement No. 847648; La Caixa Junior Leaders fellowships, La Caixa Foundation (ID 100010434): CF/BQ/PR23/11980043.KeyWords: Bose-einstein Condensate; Wave-guides; Vortex; State; Potentials; Transition; Currents; PhaseDOI: 10.1116/5.0211426
