1. IE browser is NOT supported anymore. Please use Chrome, Firefox or Edge instead.
2. If you are a new user, please register to get an IHEP SSO account through https://login.ihep.ac.cn/registlight.jsp Any questions, please email us at helpdesk@ihep.ac.cn or call 88236855.
3. If you need to create a conference in the "Conferences, Workshops and Events" zone, please email us at helpdesk@ihep.ac.cn.
4. The max file size allowed for upload is 100 Mb.
学术报告

Search for New Physics with Levitated Ferromagnetic Spin Sensor

by Prof. Wei Ji (PKU)

Asia/Shanghai
A511 Main Building

A511 Main Building

Description

Abstract:

In this talk, I will briefly discuss some of the key challenges in fundamental physics, including dark matter and new interactions beyond the Standard Model. I will then introduce spin-based sensors designed to address these challenges. The main technique I will focus on is the levitated ferromagnetic spin sensor, which offers significant advantages due to its weak coupling with the environment, enabling superior noise isolation[1] [2]. Additionally, the strong spin correlation within the ferromagnetic sensor provides promising noise suppression and signal enhancement capabilities, particularly in experiments probing the low-frequency regime. These features make levitated ferromagnetic spin sensors highly sensitive and well-suited for both new physics searches and real-world applications.

 

About the speaker:

Ji Wei is an assistant professor at the School of Physics, Peking University, and a Boya Young Scholar at Peking University. He has long been engaged in research on precision magnetic measurements and the precise testing of the Standard Model of particle physics, including the search for new interactions beyond the Standard Model and dark matter. He has developed polarized atomic magnetometers and novel levitated ferromagnetic sensors, promoting their applications in fields such as particle physics and biomedical physics. Using ultra-sensitive atomic magnetometers and high-density spin sources, he has established the most stringent experimental limits to date on new interactions between electron-electron, electron-proton, and neutron-neutron pairs. His related research findings have been published in journals such as Physical Review LettersScience Advances, and Nature Communications. He has been invited to write a comprehensive review on the detection of new interactions for Reviews of Modern Physics.

--------------

Meeting ID 会议号: 92439363312
Meeting URL 会议链接:: https://zoom.us/j/92439363312?pwd=a5yL2nTVj9wib6Xim4bKisZKA4kJEA.1
HostKey 主持人密钥: 556578
Password 会议密码: 250417