Fixing the rotating-wave approximation for strongly detuned quantum oscillators

Košata, Jan; Leuch, Anina; Kästli, Tobias; Zilberberg, Oded

Fixing the rotating-wave approximation for strongly detuned quantum oscillators

Dateien

Kosata_2-a46og35k81sp2.pdfGröße: 472.24 KBDownloads: 138

Datum

2022

Autor:innen

Košata, Jan

Leuch, Anina

Kästli, Tobias

Zilberberg, Oded

Open Access-Veröffentlichung

Open Access Gold

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review Research. American Physical Society. 2022, 4(3), 033177. eISSN 2643-1564. Available under: doi: 10.1103/PhysRevResearch.4.033177

Zusammenfassung

Periodically driven oscillators are commonly described in a frame corotating with the drive and using the rotating-wave approximation (RWA). This description, however, is known to induce errors for off-resonant driving. Here, we show that the standard quantum description, using the creation and annihilation of particles with the oscillators' natural frequency, necessarily leads to incorrect results when combined with the RWA. We demonstrate this on the simple (quantum) harmonic oscillator and present an alternative operator basis that reconciles the RWA with off-resonant driving. The approach is also applicable to more complex models, where it accounts for known discrepancies. As an example, we demonstrate the advantage of our scheme on a driven quantum Duffing oscillator.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

KOŠATA, Jan, Anina LEUCH, Tobias KÄSTLI, Oded ZILBERBERG, 2022. Fixing the rotating-wave approximation for strongly detuned quantum oscillators. In: Physical Review Research. American Physical Society. 2022, 4(3), 033177. eISSN 2643-1564. Available under: doi: 10.1103/PhysRevResearch.4.033177

BibTex

@article{Kosata2022-09-06Fixin-58573,
  year={2022},
  doi={10.1103/PhysRevResearch.4.033177},
  title={Fixing the rotating-wave approximation for strongly detuned quantum oscillators},
  number={3},
  volume={4},
  journal={Physical Review Research},
  author={Košata, Jan and Leuch, Anina and Kästli, Tobias and Zilberberg, Oded},
  note={Article Number: 033177}
}

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