Physical Review A
Fast generation of many-atom maximal entanglement in spin-1 Bose-Einstein condensates
GuangSi Meng, Huiming Xu, Song Yang, Shengli Zhang, Guang‐Can Guo, Bao‐Sen Shi, Xu‐Bo Zou
Abstract
We propose a scheme for generating many-atom maximal entanglement states in spin-1 Bose-Einstein condensates. By applying a far-off-resonate blue-detuned linear-polarized laser to the condensates, the hyperfine level $F=1,m=0$ ground state and the hyperfine $F=0$ excited state are conveniently coupled. Such a configuration is more efficient and provides a fast implementation of the maximally entangled GHZ state, using only half of the time that is required in single-atom Raman-transition-based schemes [You, Phys. Rev. Lett. 90, 030402 (2003)].