Polaromechanics: photons, magnons and phonons in the triple strong-coupling regime
- URL: http://arxiv.org/abs/2307.11328v3
- Date: Fri, 27 Sep 2024 10:51:15 GMT
- Title: Polaromechanics: photons, magnons and phonons in the triple strong-coupling regime
- Authors: Rui-Chang Shen, Jie Li, Yi-Ming Sun, Wei-Jiang Wu, Xuan Zuo, Yi-Pu Wang, Shi-Yao Zhu, J. Q. You,
- Abstract summary: We show the realization of triple strong coupling in a novel polaromechanical hybrid system.
A high polaromechanical cooperativity of $9.4times103$ is achieved by significantly reducing the polariton decay rate.
Our results pave the way towards coherent quantum control of photons, magnons and phonons, and are a crucial step for building functional hybrid quantum systems based on magnons.
- Score: 6.338229222004337
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Building hybrid quantum systems is a crucial step for realizing multifunctional quantum technologies, quantum information processing, and hybrid quantum networks. A functional hybrid quantum system requires strong coupling among its components. However, couplings between distinct physical systems are typically very weak. Experimental realization of strong coupling in a hybrid system remains a long-standing challenge, especially when it has multiple components and the components are of different nature. Here we demonstrate the realization of triple strong coupling in a novel polaromechanical hybrid system, where polaritons, formed by strongly coupled ferromagnetic magnons and microwave photons, are further strongly coupled to phonons. The corresponding polaromechanical normal-mode splitting is observed. A high polaromechanical cooperativity of $9.4\times10^3$ is achieved by significantly reducing the polariton decay rate via exploiting coherent perfect absorption. The quantum cooperativity much greater than unity is achievable if placing the system at low bath temperatures, which would enable various quantum applications. Our results pave the way towards coherent quantum control of photons, magnons and phonons, and are a crucial step for building functional hybrid quantum systems based on magnons.
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