Entanglement and Extreme Spin Squeezing for a Fluctuating Number of Indistinguishable Particles

Philipp Hyllus, Luca Pezze, Augusto Smerzi +1

We extend the criteria for $k$-particle entanglement from the spin squeezing parameter presented in [A.S. Sørensen and K. Mølmer, Phys. Rev. Lett. {\bf 86}, 4431 (2001)] to systems…