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Journal Articles npj Quantum Information Year : 2023

Steady-state Peierls transition in nanotube quantum simulator

Lin Zhang
Utso Bhattacharya
Adrian Bachtold
  • Function : Author
Stefan Forstner
  • Function : Author
Maciej Lewenstein
Tobias Grass
  • Function : Author


Quantum dots placed along a vibrating nanotube provide a quantum simulation platform that can directly address the electron-phonon interaction. This offers promising prospects for the search of new quantum materials and the study of strong correlation effects. As this platform is naturally operated by coupling the dots to an electronic reservoir, state preparation is straightforwardly achieved by driving into the steady state. Here we show that for intermediate electron-phonon coupling strength, the system with spin-polarized quantum dots undergoes a Peierls transition into an insulating regime which exhibits charge-density wave order in the steady state as a consequence of the competition between electronic Coulomb repulsive interactions and phonon-induced attractive interactions. The transport phenomena can be directly observed as fingerprints of electronic correlations. We also present powerful methods to numerically capture the physics of such an open electron-phonon system at large numbers of phonons. Our work paves the way to study and detect correlated electron-phonon physics in the nanotube quantum simulator with current experimentally accessible techniques.
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hal-04000942 , version 1 (22-02-2023)



Lin Zhang, Utso Bhattacharya, Adrian Bachtold, Stefan Forstner, Maciej Lewenstein, et al.. Steady-state Peierls transition in nanotube quantum simulator. npj Quantum Information, 2023, 9 (1), pp.7. ⟨10.1038/s41534-022-00675-4⟩. ⟨hal-04000942⟩


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