https://doi.org/10.1140/epjd/s10053-025-01066-y
Regular Article - Photons
Perfect transfer of entanglement and quantum steering via parametric frequency converter
1
Department of Physics, Government College University, Allama Iqbal Road, 38000, Faisalabad, Pakistan
2
Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, SP, Brazil
3
LPTHE, Department of Physics, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
4
Department of Physics, Abbottabad University of Science and Technology, 22500, Havellian, KPK, Pakistan
5
Physics Division, Pakistan Institute of Nuclear Science and Technology (PINSTECH), P. O. Nilore, 45650, Islamabad, Pakistan
a
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Received:
11
June
2025
Accepted:
11
September
2025
Published online:
21
September
2025
Abstract
We study the effects of a parametric frequency converter (PFC) in a two-mode cavity system where one of the cavity modes is coupled with yttrium iron garnet (YIG). The PFC acts as a nonlinear source for enhancing quantum correlations, which strongly depend on the parametric coupling and the associated phase factor. It is fascinating that the perfect transfer of entanglement and steering of various mode pairs can be achieved by adjusting the system’s parameters, such as cavity-magnon coupling, gain, and the phase of the PFC. In addition, the generated entanglements in the present system are more robust against thermal effects, particularly with the inclusion of the PFC, compared to the bare-cavity case. Another intriguing finding is that phonon-cavity one-way steering appears only when magnon-cavity one-way steering completely vanishes. Our protocol for these transferring processes suggests a different approach to the processing and storage of quantum information.
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© The Author(s), under exclusive licence to EDP Sciences, SIF 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.
