Cooperative stabilization of persistent currents in superfluid ring networks
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arXiv
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| Format: | Preprint |
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2026
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| author | Ciszak, Marzena Grani, Nicola Hernandez-Rajkov, Diego Del Pace, Giulia Roati, Giacomo Marino, Francesco |
| author_facet | Ciszak, Marzena Grani, Nicola Hernandez-Rajkov, Diego Del Pace, Giulia Roati, Giacomo Marino, Francesco |
| contents | Cooperative effects in oscillator networks are often associated with enhanced stability of phase-locked solutions, which increases with system size. We show that the stabilization of persistent currents in annular atomic superfluids with periodic barriers is a concrete manifestation of this phenomenon. Under the simplifying assumption of continuity of atomic flow across identical barriers, the system reduces to a ring of locally coupled Kuramoto-like oscillators. We analytically derive the stability diagram of phase-locked configurations and quantify their robustness to noise and small random initial imperfections, finding excellent agreement with experimental observations. These results are inherent to the ring topology and independent of the specific physical platform. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_15121 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Cooperative stabilization of persistent currents in superfluid ring networks Ciszak, Marzena Grani, Nicola Hernandez-Rajkov, Diego Del Pace, Giulia Roati, Giacomo Marino, Francesco Quantum Gases Superconductivity Adaptation and Self-Organizing Systems Cooperative effects in oscillator networks are often associated with enhanced stability of phase-locked solutions, which increases with system size. We show that the stabilization of persistent currents in annular atomic superfluids with periodic barriers is a concrete manifestation of this phenomenon. Under the simplifying assumption of continuity of atomic flow across identical barriers, the system reduces to a ring of locally coupled Kuramoto-like oscillators. We analytically derive the stability diagram of phase-locked configurations and quantify their robustness to noise and small random initial imperfections, finding excellent agreement with experimental observations. These results are inherent to the ring topology and independent of the specific physical platform. |
| title | Cooperative stabilization of persistent currents in superfluid ring networks |
| topic | Quantum Gases Superconductivity Adaptation and Self-Organizing Systems |
| url | https://arxiv.org/abs/2601.15121 |