https://doi.org/10.1140/epjp/s13360-025-06577-6
Regular Article
Squeezing-enhanced lateral light drag in a driven qubit model
1
Department of Physics, Abbottabad University of Science and Technology, Havelian, Pakistan
2
, 237 Banafsig 7, New Cairo, Egypt
3
Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
4
Department of Physics, Zhejiang Normal University, Jinhua, Zhejiang, P. R. China
Received:
26
December
2024
Accepted:
21
June
2025
Published online:
11
July
2025
We investigate the lateral light (LL) drag through a medium of a single two-level atom (qubit) that is excited by an exponentially weak decaying field and damped by a squeezed vacuum (SV) radiation reservoir. The probe light can be dragged when it falls on the moving medium. The LL drag can be controlled by the exponential parameter of the decaying field through the qubit model with probe detuning and the translational velocity of the medium, and can be enhanced by keeping the average photon number relatively small through the qubit. The squeezed vacuum phase modifies the lateral LL through the qubit model, both in the positive and negative directions (i.e., both normal and anomalous regions) leading to sub- and super-luminal behavior of the light. Our investigation shows that the origin of the different line shapes and the type of LL drag displacement are attributed to superposition of various line shapes (Lorentzian, squared Lorentzians, dispersive,...) and their interferences.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
