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Majorana zero modes are theoretical zero-energy states in certain topological superconductors, possessing non-Abelian statistics and expected to provide robust quantum information storage and noise resistance for topological quantum computing. Tunneling conductance spectroscopy is the primary method for detecting Majorana zero modes; however, recent experiments have faced challenges due to interference from Andreev bound states, leading to false positives or masking true Majorana signals. In this talk, I will discuss the following issues: first, I propose a detection method based on dissipative probes and electron-boson interaction renormalization to eliminate interference from Andreev bound states. Second, I will address potential solutions to impurity contamination in nanowires. Finally, I will explore whether Majorana zero modes are necessary for building a reliable quantum computer, considering quantum error correction and calibration challenges in quantum computing.
Dr. Dong E. Liu received his bachelor's degree from Peking University and his Ph.D. from Duke University. From 2012 to 2017, he conducted postdoctoral research at Michigan State University and Microsoft Station Q. In 2018, he joined the Department of Physics at Tsinghua University, where he is currently a tenured associate professor. He also holds a concurrent position as a research fellow at the Beijing Academy of Quantum Information Sciences, where he leads the Quantum Operating System Software Development Team. His main research interests include quantum error correction codes and error mitigation theory, detection of Majorana zero modes, non-equilibrium quantum many-body physics, and quantum computer architecture.
Tencent Meeting link: https://meeting.tencent.com/dm/nmkuOqd0vzcD Meeting ID: 266 118 908, no password