Real-time imaging of slow noisy quasiparticle dynamics at a non-trivial metastable defect in an electronic crystal
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arXiv
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| Natura: | Preprint |
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2025
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| author | Vaskivskyi, Yevhenii Vodeb, Jaka Vaskivskyi, Igor Mihailovic, Dragan |
| author_facet | Vaskivskyi, Yevhenii Vodeb, Jaka Vaskivskyi, Igor Mihailovic, Dragan |
| contents | Nonequilibrium self-assembly is the root of all emergent complexity, including life. In quantum materials emergent metastable states have become a very fashionable topic of research, but the study of resulting mesoscopic state dynamics is hindered by the absence of appropriate methods. Here we pioneer the use of fast-scanning tunnelling microscope (FSTM) techniques to investigate the internal dynamics of mesoscopic metastable topologically non-trivial defects in an electronic Wigner crystal superlattice created by a local electromagnetic perturbation. This allows us to record unprecedented individual electron motion trajectories in real-time on the millisecond timescale. Such dynamics is understood to arise from coupling of hybridised Goldstone-Higgs bound states localised at the Y junction with microscopic electronic degrees of freedom that lead to the formation of localised quasiparticles with slow internal dynamics. Their unprecedented robustness against external perturbations comes from non-local constraints and non-trivial broken symmetries. Two-level system telegraph noise maps at the junction show phase and amplitude that is correlated with the observed electron motion trajectories. Such observation of single-particle dynamics in real time fundamentally transforms our understanding of metastable quantum states in electronic crystals and paves the way for technological advancements that make use of engineered topologically non-trivial defects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_02688 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Real-time imaging of slow noisy quasiparticle dynamics at a non-trivial metastable defect in an electronic crystal Vaskivskyi, Yevhenii Vodeb, Jaka Vaskivskyi, Igor Mihailovic, Dragan Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks Strongly Correlated Electrons Nonequilibrium self-assembly is the root of all emergent complexity, including life. In quantum materials emergent metastable states have become a very fashionable topic of research, but the study of resulting mesoscopic state dynamics is hindered by the absence of appropriate methods. Here we pioneer the use of fast-scanning tunnelling microscope (FSTM) techniques to investigate the internal dynamics of mesoscopic metastable topologically non-trivial defects in an electronic Wigner crystal superlattice created by a local electromagnetic perturbation. This allows us to record unprecedented individual electron motion trajectories in real-time on the millisecond timescale. Such dynamics is understood to arise from coupling of hybridised Goldstone-Higgs bound states localised at the Y junction with microscopic electronic degrees of freedom that lead to the formation of localised quasiparticles with slow internal dynamics. Their unprecedented robustness against external perturbations comes from non-local constraints and non-trivial broken symmetries. Two-level system telegraph noise maps at the junction show phase and amplitude that is correlated with the observed electron motion trajectories. Such observation of single-particle dynamics in real time fundamentally transforms our understanding of metastable quantum states in electronic crystals and paves the way for technological advancements that make use of engineered topologically non-trivial defects. |
| title | Real-time imaging of slow noisy quasiparticle dynamics at a non-trivial metastable defect in an electronic crystal |
| topic | Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2512.02688 |