Cited by 71Quantum optics and atomic interactionsQuantum Mechanics and ApplicationsStrong Light-Matter Interactions

Absence of Vacuum Induced Berry Phases without the Rotating Wave Approximation in Cavity QED

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Larson, Jonas·2012·Physical Review Letters

Abstract

We revisit earlier studies on Berry phases suggested to appear in certain cavity QED settings. It has been especially argued that a nontrivial geometric phase is achievable even in the situation of no cavity photons. We, however, show that such results hinge on imposing the rotating wave approximation (RWA), while without the RWA no Berry phases occur in these schemes. A geometrical interpretation of our results is obtained by introducing semiclassical energy surfaces which in a simple way brings out the phase-space dynamics. With the RWA, a conical intersection between the surfaces emerges and encircling it gives rise to the Berry phase. Without the RWA, the conical intersection is absent and therefore the Berry phase vanishes. It is believed that this is a first example showing how the application of the RWA in the Jaynes-Cummings model may lead to false conclusions, regardless of the mutual strengths between the system parameters.

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  1. [1]E. T. Jaynes and F. W. Cummings, Proc. IEEE 51 , 89 (1963).
  2. [8]H. C. Longuet-Higgins et al. , Proc. R. Soc. London Ser. A 244 , 1 (1958).
  3. [9]M. V. Berry, Proc. R. Soc. London Ser. A 392 , 45 (1984).

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Authors
Larson, J.
Affiliations
Stockholm University (SE)
Corresponding author
Larson, Jonas
Venue
Physical Review Letters
Published
2012-01-18
Volume
108
Issue
3
Pages
033601-033601
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2001194603
Cited by
71
References
47
Citations by year
2025: 1 · 2024: 1 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 3 · 2019: 5 · 2018: 4 · 2017: 12 · 2016: 8 · 2015: 9 · 2014: 5 · 2013: 8 · 2012: 6
FWCI
4.63
Type
journal article
Language
en
Open access
Locations
  • Physical Review Letters (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
Keywords
Berry phase, rotating wave approximation, cavity quantum electrodynamics, Jaynes-Cummings model, conical intersections, phase space dynamics

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