We numerically investigate atomic interferometry based on spin-exchange collisions in $F=1$ spinor Bose-Einstein condensates in the regime of long evolution times $t\gg h/c$, where $c$ is the spin-dependent interaction energy. We show that the sensitivity of spin-mixing interferometry can be enhanced by using classically seeded initial states with a small population prepared in the $m_F=\pm 1$ states.

• Received 7 September 2019
• Revised 5 December 2019

DOI:https://doi.org/10.1103/PhysRevA.100.063637