Origin of the geometric forces accompanying Berry’s geometric potentials
Yakir Aharonov and Ady Stern
Phys. Rev. Lett. 69, 3593 (1992) - Published 21 December, 1992
Quantum limits on precision measurements of phase
Samuel L. Braunstein
Phys. Rev. Lett. 69, 3598 (1992) - Published 21 December, 1992