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Tuning the Photonic Spin Hall Effect through vacuum-induced transparency in an atomic cavity

Author

Listed:
  • Abbas, Muqaddar
  • Wang, Yunlong
  • Wang, Feiran
  • Hamedi, Hamid R.
  • Zhang, Pei

Abstract

We present a method for manipulating the Photonic Spin Hall Effect (PSHE) by examining the characteristics of an atomic ensemble with two levels connected to a high-quality cavity. Although the cavity is initially in a vacuum state with no external excitation, a substantial change can be made to the atomic ensemble’s probe response. A coherent effect analogous to electromagnetically induced transparency (EIT) arises when the cavity decay rate is significantly lower than the atomic dissipation rate and the collective atom–cavity interaction is robust. This results in reduced absorption of the two-level atoms in the cavity, even in the absence of external stimulation, a phenomenon known as vacuum-induced transparency, which in turn amplifies the PSHE. Furthermore, we explore how varying the atomic number density enhances the PSHE without altering the cavity’s structure. These findings offer new prospects for applications in quantum electrodynamics within cavity systems.

Suggested Citation

  • Abbas, Muqaddar & Wang, Yunlong & Wang, Feiran & Hamedi, Hamid R. & Zhang, Pei, 2025. "Tuning the Photonic Spin Hall Effect through vacuum-induced transparency in an atomic cavity," Chaos, Solitons & Fractals, Elsevier, vol. 196(C).
    • Handle: RePEc:eee:chsofr:v:196:y:2025:i:c:s0960077925003054
    DOI: 10.1016/j.chaos.2025.116292
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