TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhysCore.8.4.082
TI  - Spin-orbit photonics in a fixed cavity: Harnessing Bogoliubov modes of a Bose-Einstein condensate
PY  - 2025/11/12
UR  - https://www.scipost.org/SciPostPhysCore.8.4.082
JF  - SciPost Physics Core
JA  - SciPost Phys. Core
VL  - 8
IS  - 4
SP  - 082
A1  - Din, Ghaisud
AU  - Abbas, Muqaddar
AU  - Zhang, Pei
AB  - We present a theoretical investigation of spin-orbit photonics within a fixed mirror cavity system containing a Bose-Einstein condensate (BEC), in which the Bogoliubov excitation modes of the condensate are treated as effective mechanical oscillators. By embedding the condensate in a single-mode optical cavity, we explore the emergence and modulation of the photonic spin Hall effect (PSHE) through the spin-dependent transverse shifts of a weak probe field. The optical response —encoded in the real and imaginary components of the output field susceptibility— is systematically analyzed as a function of the condensate-cavity coupling strength, revealing a controllable enhancement or suppression of the spin-orbit interaction. Our model captures how the interplay between collective BEC excitations and cavity photon dynamics induces nontrivial modifications in spin-dependent light propagation. Notably, we uncover that the Bogoliubov mode coupling acts as a tunable channel for mediating spin angular momentum transfer within the cavity, offering a novel route for engineering compact, quantum-coherent spin-orbit photonic devices.
ER  -

@Article{10.21468/SciPostPhysCore.8.4.082,
	title={{Spin-orbit photonics in a fixed cavity: Harnessing Bogoliubov modes of a Bose-Einstein condensate}},
	author={Ghaisud Din and Muqaddar Abbas and Pei Zhang},
	journal={SciPost Phys. Core},
	volume={8},
	pages={082},
	year={2025},
	publisher={SciPost},
	doi={10.21468/SciPostPhysCore.8.4.082},
	url={https://scipost.org/10.21468/SciPostPhysCore.8.4.082},
}