A brief history and quantum frontier

for optical atomic clocks

主讲人：张熙博

时间：9月13日 19:20～20:50

地点：宁斋

摘要

Scaling up the size of coherent quantum systems advances the frontier of precision measurement, and quantum entanglement is poised to make major impact in the near term. Quantum science is thus revolutionizing today’s atomic clocks and metrology, providing opportunities to probe fundamental physics and explore emerging quantum phenomena. In this lecture, I will introduce a brief history for optical atomic clocks, and will further discuss recent advances that include precise control of atomic interactions to achieve high accuracy, determination of the gravitational time dilation across a few hundred micrometers, and employment of spin entanglement for clock comparison. I will also discuss some of my recent works enabled by the precision engineering power of ultracold atoms and precision measurements.

主讲人 张熙博

Xibo Zhang received his Ph.D. degree in 2012 from the University of Chicago. He is now an associate professor with tenure at the International Center for Quantum Materials, School of Physics, Peking University. His research interest includes quantum simulation based on ultracold atom experiments, quantum many-body physics, and ultrastable laser precision spectroscopy.