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  • Institute for Quantum Computing

    Quantum Material Multilayer Photonic Devices and Network

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    2d carbon CMOS computation electrical & computer engineering excitons heterostructures high density large-binding energy materials optics photonics scalable seed fund TMDC wafer

    Summary 

    Realizing highly integrated quantum photonic devices on a chip can enable new opportunities for photonic quantum computation. In this project, we explore heterostructures of stacked two-dimensional (2D) materials, such transition metal dichalcogenides (TMDC) or graphene, combined with optical microcavities as a platform for such devices. 2D materials are extremely thin and flexible, and have emerged as a host for a range of exciting new quantum phenomena, in particular when different 2D materials are stacked together. We plan to address the challenges of stacking more than two layers of 2D materials and of extending the stacking methods to produce wafer-scale structures, as well as the challenges of making this platform compatible by with CMOS infrastructure for future integration towards large-scale quantum photonic computation and networks. We will achieve our goal through an interdisciplinary effort involving deep physical and chemical knowledge, state-of-the-art nanofabrication processing techniques and facilities, extensive material and device characterization measurements, and theoretical investigations.

    Figure 1. The calculated absorption spectra of a cavity containing a heterostructure made of multi-colour emitting layers. The three anti-crossings are a manifestation of strongly-coupled polariton states.

    Principal Investigator (PI) or Team Coordinator

    Na Young Kim

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    Folk Understanding of Quantum Physics

    Summary  It is often said that quantum concepts are counterintuitive. However, quantum concepts may not be equally counterintuitive to people from all cultural backgrounds. As cultural psychologists have discovered, culture fundamentally shapes the way people make sense of the world. In particular, the last few decades of research have documented cultural differences in appreciation of […]

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    Topological Properties of Exciton-Polaritons in a Kagome Lattice as a Solid-state Quantum Simulator
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