Hernández Yanes T, Płodzień M, Mackoit Sinkevičienė M, Žlabys G, Juzeliūnas G, Witkowska E
Institute of Physics PAS, Aleja Lotnikow 32/46, 02-668 Warszawa, Poland.
ICFO - Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, Av. Carl Friedrich Gauss 3, 08860 Castelldefels (Barcelona), Spain.
Phys Rev Lett. 2022 Aug 26;129(9):090403. doi: 10.1103/PhysRevLett.129.090403.
Generation, storage, and utilization of correlated many-body quantum states are crucial objectives of future quantum technologies and metrology. Such states can be generated by the spin-squeezing protocols, i.e., one-axis twisting and two-axis countertwisting. In this Letter, we show activation of these two squeezing mechanisms in a system composed of ultracold atomic fermions in the Mott insulating phase by a position-dependent laser coupling of atomic internal states. Realization of both the squeezing protocols is feasible in the current state-of-the-art experiments.
