Po Zhang (张泼)

Associate research scientist
zhangpo@baqis.ac.cn
Office: 633
Google Scholar, ORCID, GitHub

Biography
Po Zhang received B.S. degrees in physics and mathematics from Nankai University in 2012, and a Ph.D. degree in physics from Peking University in 2017. During PhD, he studied quantum Hall states in two-dimensional electron gas in Prof. Rui-Rui Du's lab. Subsequently, he joined Prof. Sergey Frolov's lab at the Univerity of Pittsburgh as a postdoc. He lived in Pittsburgh until 2022, studying topological states and Andreev bound states in superconductor-semiconductor (super-semi) devices. Thereafter, he joined the semiconductor quantum computing group led by Prof. Hongqi Xu at BAQIS as an associate research scientist.

Research
Po Zhang's recent research interests focus on searching for non-Abelian quasi-particles in super-semi devices and studying physics in these mesoscopic devices. Non-Abelian quasi-particles like Majorana zero modes hold great promise for realizing physically fault-tolerant qubits.
He is also interested in fractional quantum Hall states (strongly correlated systems) and artificial systems consisting of arrays of gate-defined quantum dots (quantum simulation).

Grants
NSFC grant No. 92365103.

Selected Publications/Preprints
For a full list of my published and preprint works, see Google Scholar or ORCID.
(co-first†, co-corresponding#)

• P. Zhang, A. Zarassi, L. Jarjat, V. Van de Sande, M. Pendharkar, J. S. Lee, C. P. Dempsey, A. P. McFadden, S. D. Harrington, J. T. Dong, H. Wu, A. -H. Chen, M. Hocevar, C. J. Palmstrøm, and S. M. Frolov, "Large second-order Josephson effect in planar superconductor-semiconductor junctions", SciPost Phys. 16, 030 (2024).
• Po Zhang, Hao Wu, Jun Chen, Sabbir A. Khan, Peter Krogstrup, David Pekker, and Sergey M. Frolov, "Signatures of Andreev Blockade in a Double Quantum Dot Coupled to a Superconductor", Phys. Rev. Lett. 128, 046801 (2022).
• M. Pendharkar†, B. Zhang†, H. Wu†, A. Zarassi†, P. Zhang†, C. P. Dempsey, J. S. Lee, S. D. Harrington, G. Badawy, S. Gazibegovic, R. L. M. Op het Veld, M. Rossi, J. Jung, A.-H. Chen, M. A. Verheijen, M. Hocevar, E. P. A. M. Bakkers, C. J. Palmstrøm, and S. M. Frolov, "Parity-preserving and magnetic field–resilient superconductivity in InSb nanowires with Sn shells", Science 372, 508–511 (2021).
• Po Zhang, Ruiyuan Liu, Rui-Rui Du, L. N. Pfeiffer, and K. W. West, "Composite fermion states around the two-dimensional hole Landau level filling factor 3/2 in tilted magnetic fields", Phys. Rev. B 95, 155316 (2017).
• Po Zhang, Jianli Wang, Chi Zhang, Rui-Rui Du, L. N. Pfeiffer, and K. W. West, "Shifted Landau ladders and low field magneto-oscillations in high-mobility GaAs 2D hole systems", Applied Physics Letters 110, 112103 (2017).

• Xingjun Wu, Haitian Su, Chuanchang Zeng, Ji-Yin Wang, Shili Yan, Dong Pan#, Jianhua Zhao, Po Zhang#, and H. Q. Xu#, "Superconducting switching jump induced missing first Shapiro step in Al-InSb nanosheet Josephson junctions", arXiv preprint arXiv:2403.07370 (2024).
• Haitian Su, Ji-Yin Wang, Han Gao, Yi Luo, Shili Yan, Xingjun Wu, Guoan Li, Jie Shen, Li Lu, Dong Pan#, Jianhua Zhao, Po Zhang#, and H. Q. Xu#, "Microwave-assisted unidirectional superconductivity in Al-InAs nanowire-Al junctions under magnetic fields", arXiv preprint arXiv:2402.02137 (2024).
• P. Zhang, A. Zarassi, M. Pendharkar, J. S. Lee, L. Jarjat, V. Van de Sande, B. Zhang, S. Mudi, H. Wu, S. Tan, C. P. Dempsey, A. P. McFadden, S. D. Harrington, B. Shojaei, J. T. Dong, A. -H. Chen, M. Hocevar, C. J. Palmstrøm, and S. M. Frolov, "Planar Josephson Junctions Templated by Nanowire Shadowing", arXiv preprint arXiv:2211.04130 (2022).
• P. Zhang, S. Mudi, M. Pendharkar, J. S. Lee, C. P. Dempsey, A. P. McFadden, S. D. Har- rington, J. T. Dong, H. Wu, A. -H. Chen, M. Hocevar, C. J. Palmstrøm, and S. M. Frolov, "Missing odd-order Shapiro steps do not uniquely indicate fractional Josephson effect", arXiv preprint arXiv:2211.08710 (2022).