Generation of a squeezed Schrödinger cat state in an anisotropic ferromagnet-superconductor coupled system
Shiwen He, Xuanxuan Xin, Zhen Wang, Feng-Yang Zhang, Chong Li
DOI 10.1103/PhysRevA.110.053710 · Physical Review A
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Abstract
The direct coupling system between a magnon and a superconducting qubit exhibits a special advantage in the quantum information processing [Phys. Rev. Lett. 129, 037205 (2022) ]. In this paper, based on this direct coupling system, the magnonic squeezed Schrödinger cat states (MSSCSs) can be generated by the conditional displacement mechanism. Numerical simulation shows that our scheme is robust to the dissipation of the system. In particular, we find that the coherence amplitude of MSSCSs can be enhanced via a squeezed transformation. Our results have potential application in quantum information processing and quantum optics.
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