| Issue |
EPL
Volume 153, Number 1, January 2026
|
|
|---|---|---|
| Article Number | 18001 | |
| Number of page(s) | 6 | |
| Section | Quantum information | |
| DOI | https://doi.org/10.1209/0295-5075/ae253c | |
| Published online | 02 January 2026 | |
Exploring the nature of phonon-qubit-photon coupling in a hybrid circuit
1 Coordenação de Ciências da Computação, Universidade Estadual do Piauí, Campus Professor Alexandre Alves de Oliveira - 64202-220, Parnaíba, Piauí, Brazil
2 Instituto de Ciências e Engenharia, Universidade Estadual Paulista, Campus de Itapeva 18409-010, Itapeva, São Paulo, Brazil
3 Department of Physics, Government College University - Allama Iqbal Road, Faisalabad 38000, Pakistan
4 Instituto de Fsica Gleb Wataghin, Universidade Estadual de Campinas - Campinas, São Paulo, Brazil
Received: 26 May 2025
Accepted: 27 November 2025
Abstract
The interaction between photons and phonons mediated by a third medium has significant potential for various applications in quantum information technology. Inspired by experimental investigations obtained on hybrid circuits, we aimed to develop a comprehensive theory for analytically calculating the transmission and reflection spectra, as well as obtaining eigenenergies of the circuits associated with this interaction. When analyzing the transmission spectra, we observed an intriguing correlation between the eigenenergies and the spectral peaks. This observation suggests the possibility of a deeper understanding of the stationary states involved in this unique hybrid circuit. Through this analysis, we aim not only to describe the observed phenomena but also to provide valuable insights for quantum technology.
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