J. P. Wrubel, Schwettmann, A., Fahey, D. P., Glassman, Z., Pechkis, H. K., Griffin, P. F., Barnett, R., Tiesinga, E., and Lett, P. D.,
“A spinor Bose-Einstein condensate phase-sensitive amplifier for SU(1,1) interferometry”,
Phys. Rev, vol. A 98, no. 023620, 2018.