Seminar "Spin Squeezing for Ultracold Fermions in Optical Lattices", Prof. Gedminas Juzeliūnas, Vilnius Universiy, Lithuania

Speaker

Gediminas Juzeliūnas
Professor
Institute of Theoretical Physics and Astronomy, Vilnius University, Vilnius, Lithuania

Abstract

We discuss possibilities to produce spin squeezing for fermionic atoms in optical lattices. It is shown that by applying laser radiation one can simulate not only one axis twisting (OAT) but also two axis countertwisting (TACT) spin squeezing models, the latter TACT model providing better squeezing. The spin squeezing generated in this way is mediated by spin waves playing a role of the intermediate states facilitating the squeezing process. The spin squeezing can be used for increasing sensitivity of atomic clocks.

More about this work: 

Phys. Rev. Lett. 129, 090403 (2022)
Phys. Rev. B 108, 104301 (2023)

Looking forward to seeing many of you at the seminar.

Quantum Systems Unit / Busch Unit