Huanying Sun

Abstract The multimode cavity optomechanical system offers versatile applications, including state transduction, coherent interconnection, and many-body simulations. In this work, we establish a high-quality-factor 3C-SiC membrane resonator as a versatile platform for multimode cavity optomechanics, demonstrating its capabilities from precise stress characterization to coherent quantum operations.

Abstract Cubic silicon-carbide crystals (3C-SiC), known for their high thermal conductivity and in-plane stress, hold significant promise for the development of high-quality (Q) mechanical oscillators. We reveal degeneracy-breaking phenomena in 3C-phase crystalline silicon-carbide membrane and present high-Q mechanical modes in pairs or clusters. The 3C-SiC material demonstrates excellent microwave compatibility with superconducting circuits.

1 Introduction Modern electronics is prevailed by silicon complementary metal-oxide-semiconductor (CMOS) technology. Nevertheless, silicon CMOS has been facing bottlenecks in the condition of high-power density, high frequency, high temperature, and high radiation.