J. Zakrzewski et D. Delande, HOW TO BUILD EXPERIMENTALLY A NONSPREADING WAVEPACKET, Journal of physics. B, Atomic molecular and optical physics, 30(2), 1997, pp. 87-93
We show, by an exact numerical simulation, how to prepare a non-spread
ing electronic wavepacket in Rydberg atoms, using the nonlinear intera
ction of the Rydberg electron with a circularly polarized microwave he
ld. The wavepacket can be prepared by a mixed diabatic/adiabatic switc
hing on of the microwave field, which is studied in detail for realist
ic conditions.