On April 13, 2021, the Beijing Municipal Human Resources and Social Security Bureau issued the "Announcement on the 2021 Beijing Postdoctoral Research Funding and International Training Evaluation Results". After the institution recommendation and the evaluation by the Expert Evaluation Committee, a total of 182 postdoctoral researchers received the funding awards( from ￥50,000-100,000). Four Postdoctoral Fellows from BAQIS, Zhang Xiaonan, Ren Yi, Luo Wenhao, and Zhang Yue, received class A awards (innovative research and development) for their post-doctoral research projects.

Dr. Xiaonan Zhang

Division of Quantum Precision Measurement

Project: Ultra-Sensitive Detection of Human Cardio-Magnetic Gradient and Cerebral-Magnetic Gradient in Ambient Environments

With the rapid development of weak-magnetic detection technology in the field of quantum precision measurement, this technology with ultra-high sensitivity has gradually attracted wide attention and own great application potential in biomedical research field.

Dr. Zhang is doing her postdoctoral reach on the project plans to carry out precise measurements of human cardio and cerebral magnetic field signals without conventional magnetic shielding environment through designing a small sized atomic optical pumping magnetic gradiometer.

The measurement scheme proposed by this project can effectively improve the flexibility of the detection and acquisition of weak magnetic field signals. Ultra-high precision bio-magnetic field information can help researchers to better understand the function characteristics of human organs and tap unique potentials of magnetic information diagnosis for a leapfrog development of clinical diagnostic methods for specific diseases, especially some cardiovascular and cerebrovascular diseases. In addition, this magnetic field measurement technology can also be applied to the design of brain-computer interface in the field of artificial intelligence to form biological information exchange device, thus is expected to make the remote control technology of brain signal which usually appears in sci-fi movie become a reality.

Dr. Yi Ren

Division of Quantum Materials and Devices

Project: Theoretical Research on Electrically Controlled Magnetic Properties in New Two-Dimensional Magnetic Devices

The project is based on the quantum technology development strategic plan and system layout proposed by Beijing, and is the basic research of non-volatile storage and logic function devices in the development of quantum information and quantum computing. The project aims to combine physical analysis models with supercomputer simulation calculations to design a new type of efficient and reasonable two-dimensional magnetic device model. It also reveals the regulation mechanism of electron spin, which provides a theoretical reference for experimental design and preparation of new two-dimensional magnetic devices. The successful application of this project provided a great help for the following work.

Dr. Wenhao Luo

Division of Quantum Precision Measurement

Project: Research on the Bell-Bloom Configuration Gradiometer without Magnetic Shielding

This project aims at measuring weak magnetic signals, and aims to detect weak magnetic signals in a non-magnetic shielding environment. In the future, it can be widely used in biological magnetic signal detection, geological exploration, nondestructive testing, and geomagnetic navigation. The magnetic gradient meter designed in this project is expected to greatly reduce the complexity of the device, not only reduce the volume of the device, but also realize the measurement of cardiac magnetic signal and brain magnetic signal in the geomagnetic environment, and greatly expand its application scope and field. His co-tutor believes that the Bell-Bloom magnetic gradient meter can detect the weak magnetic field without magnetic shielding. Once developed successfully, it will be conducive to promoting the progress of medical science and physical mechanism research.

Dr. Yue Zhang

Division of Quantum Materials and Devices

Project: Characterizations and Applications of Nonclassicality and Nongaussianity of Multimode Bosonic Field

Nonclassicality is a significant feature that divides the quantum world from the classical world, and a key resource in the quantum information processing. Its characterization and quantification are important subjects in the quantum information theory. As another important resource in quantum information processing, nonGaussianity has also received extensive attention in recent years. This project aims to quantify nonclassicality and nonGaussianity of multimode bosonic field from an information-theoretic perspective, and explore their applications in statistical physics and condensed matter physics, so as to deepen the understanding of the quantum world, and promote the theoretical research of quantum optics and the physical realization of quantum information processing.