An international team of researchers from Princeton University, the University of Texas at Dallas, the National High Magnetic Field Laboratory in Tallahassee, FL, the Beijing Institute of Technology, and the University of Zurich in Switzerland has observed long-range quantum coherence effects in a topological insulator-based device, which may enable the development of efficient topological electronic devices. "Unlike conventional electronic devices, topological circuits are robust against defects and impurities, making them far less prone to energy dissipation, which is advantageous for greener applications," said M. Zahid Hasan, one of the scientists involved in this study. This work builds on 15 years of research at Princeton University on the development of quantum devices using bismuth bromide topological insulators – only a few nanometers thick and capable of maintaining quantum coherence at room temperature.
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