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Photonics & Electromagnetics Research Symposium - Spring (PIERS-Spring)

Hybrid Magnetic Systems for Quantum Frequency Conversion

Maksut Maksutoğlu, E. Demirci, Eren Doğan, S. Kazan, Ibrahim Saim Unver, Farkhad Zaynullin, Talha Bozkurt, Hacer Ipek, N. Güneş Sarıbaş, Hasan Pişkin, Fikret Yıldız, Мозжухин Георгий Владимирович, Bulat Z. Rameev

Published May 4, 2025• 0 citations

Abstract

Microwave-to-optical quantum transduction is a critically important task in the field of quantum information and communication technologies. Hybrid Quantum Systems (HQS), consisting of different interacting subsystems, are believed to be a physical base for the realization of quantum frequency conversion. HQSs based on magnetically ordered materials look like a very prospective solution due to the strong coupling between MW photons and magnetic oscillations. Another approach is based on rare-earth (RE) ions doped in crystals, which potentially provides an efficient way for magneto-optical quantum coherence transfer. In this work, we review approaches for quantum transduction based on both classes of materials (magnon- and RE-based). We analyze their specific features and compare the strong and weak sides of each material class. The possibility interfacing or combining these two approaches in a single device is also considered as well as the technical challenges of the practical realization of such a hybrid system.

DOI: 10.1109/piers-spring66516.2025.11276275

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Microwave-to-optical quantum transduction is a critically important task in the field of quantum information and communication technologies. Hybrid Quantum Systems (HQS), consisting of different interacting subsystems, are believed to be a physical base for the realization of quantum frequency conversion. HQSs based on magnetically ordered materials look like a very prospective solution due to the strong coupling between MW photons and magnetic oscillations. Another approach is based on rare-earth (RE) ions doped in crystals, which potentially provides an efficient way for magneto-optical quantum coherence transfer. In this work, we review approaches for quantum transduction based on both classes of materials (magnon- and RE-based). We analyze their specific features and compare the strong and weak sides of each material class. The possibility interfacing or combining these two approaches in a single device is also considered as well as the technical challenges of the practical realization of such a hybrid system.

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In this work, an approach based on the use of yttrium iron garnet (YIG) to increase the efficiency of quantum frequency conversion has been theoretically studied. YIG, which is a ferrimagnetic insulator transparent to both microwave and optical frequencies, has a very low damping parameter. Therefore, the coupling of YIG to microwave resonator modes is very strong. It has been demonstrated that it is possible to use the spin-wave oscillations of YIG to increase essentially the coupling of microwave photons to

\text{Er}^{3+}

spin-flip transitions. The basic parameters of 2 -stage microwave-to-optic transduction in the proposed Erbium-YIG-based Hybrid Quantum System have been theoretically analyzed. The conditions needed for efficient coupling between magnetic resonance levels of

\text{Er}^{3+}

ions and spin wave modes have been also considered.

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