Скачать или смотреть Norman Yao: A Universal Theory of Spin Squeezed Entanglement (October 17, 2025)

Quantum metrology makes use of structured entanglement to perform measurements with greater precision than would be possible with only classically correlated particles. One of the most paradigmatic examples of such entanglement is known as “spin squeezing”, which is known to arise in bespoke systems exhibiting all-to-all interactions. In this talk, Norman Yao will provide evidence for the following conjecture: that there exists a one-to-one correspondence between spin squeezing and a particular type of magnetic order (i.e. an easy-plane ferromagnet). If true, this would suggest that spin squeezed entanglement can naturally be generated in a wide variety of physical systems, including quantum dipoles.

Norman Yao is Professor of Physics at Harvard University. His research interests lie at the interface between AMO physics, condensed matter, and quantum information science. A recurring theme in his research program is that much of the power of quantum mechanics remains concealed if one focuses solely on systems in thermal equilibrium. Norm earned both his undergraduate degree (2009) and his Ph.D. (2014) from Harvard. Following a Miller postdoctoral fellowship, he joined the UC Berkeley physics faculty in 2017 and returned to Harvard in 2022. He is a recipient of the Breakthrough Foundation’s New Horizons Prize, a Simons Investigator (2023-2028), a Brown Investigator and has been awarded the I. I. Rabi Prize and the George E. Valley Prize from the American Physical Society.

For more information go to: https://www.simonsfoundation.org/even...