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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.02613 |
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| _version_ | 1866908628129153024 |
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| author | Ullrich, David Cagetti, Marta Forstner, Stefan Bachtold, Adrian Sanpera, Anna |
| author_facet | Ullrich, David Cagetti, Marta Forstner, Stefan Bachtold, Adrian Sanpera, Anna |
| contents | Suspended carbon nanotubes hosting electrostatically defined quantum dots allow for exceptionally strong and tunable electromechanical coupling as well as mechanical modes that can reach the quantum ground state of motion simply by cryogenic cooling. This makes them a unique platform for quantum simulation of electron-phonon coupling. Here, we propose an experimentally realisable setup with two such carbon nanotubes in parallel, each hosting four quantum dots. Our system not only exhibits phonon-mediated electron-electron attraction, but also supports a robust, maximally entangled Bell phase at mesoscopic scales shared across the subsystems. These features highlight its potential as a simulator of strongly correlated quantum systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_02613 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Emergent Bell Phase in an Electro-Nanomechanical Quantum Simulator Ullrich, David Cagetti, Marta Forstner, Stefan Bachtold, Adrian Sanpera, Anna Quantum Physics Mesoscale and Nanoscale Physics Suspended carbon nanotubes hosting electrostatically defined quantum dots allow for exceptionally strong and tunable electromechanical coupling as well as mechanical modes that can reach the quantum ground state of motion simply by cryogenic cooling. This makes them a unique platform for quantum simulation of electron-phonon coupling. Here, we propose an experimentally realisable setup with two such carbon nanotubes in parallel, each hosting four quantum dots. Our system not only exhibits phonon-mediated electron-electron attraction, but also supports a robust, maximally entangled Bell phase at mesoscopic scales shared across the subsystems. These features highlight its potential as a simulator of strongly correlated quantum systems. |
| title | Emergent Bell Phase in an Electro-Nanomechanical Quantum Simulator |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2511.02613 |