Generation of Four-Component Schrödinger Cat States via Floquet Engineering in a Hybrid Ferromagnet-Superconductor System

• URL: http://arxiv.org/abs/2507.12924v3
• Date: Sat, 30 Aug 2025 12:41:26 GMT
• Title: Generation of Four-Component Schrödinger Cat States via Floquet Engineering in a Hybrid Ferromagnet-Superconductor System
• Authors: Shiwen He, Zi-Long Yang, Sitong Jin, Feng-Yang Zhang, Chong Li,
• Abstract summary: Floquet-engineering scheme is proposed for generating 4C states in a hybrid ferromagnet-superconductor system.<n>Results provide a scalable route to multi-component cat-state engineering in solid-state platforms.
• Score: 5.326006353775006
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Four-component Schr\"odinger cat (4C) states are important physical resources for fault-tolerant quantum computing. However, the generation of 4C states in solid-state platforms remains challenging due to stringent nonlinearity requirements. In this paper, a Floquet-engineering scheme is proposed for generating 4C states in a hybrid ferromagnet-superconductor system. Numerical simulations show that the high-fidelity 4C states can be generated even if the decoherence of the system is considered. These results provide a scalable route to multi-component cat-state engineering in solid-state platforms and open new avenues for quantum computation.

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