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Chiral interaction enhanced magnon bundle emission
Zhicai Chen, Deyi Kong, Chengdeng Gou, Xiangming Hu, Fei Wang·July 2, 2026
Quantum Physics
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Abstract
In this paper, we suggest a chiral interaction scheme to enhance magnon bundle emission by placing a qubit and a magnon into a cascaded-cavity setup, respectively. It is found that the unidirectional interaction prolongs the lifetime of the target excited state, thereby suppressing the magnon re-excitation and promoting both the average purity and number of two-magnon bundles. Consequently, the chiral interaction not only offers directional control but also improves the quality of the multi-magnon source, which may find potential applications in quantum information processing.