Optimum pulse shapes for stimulated Raman adiabatic passage

Details Optimum pulse shapes for stimulated Raman adiabatic passage Optimum pulse shapes for stimulated Raman adiabatic passage

2009-06-10

arxiv.org/abs/0906.1989v1

Physics

Quantum Physics

8 pages, 6 figures. submitted to Phys. Rev. A

Scientific paper

Stimulated Raman adiabatic passage (STIRAP), driven with pulses of optimum shape and delay has the potential of reaching fidelities high enough to make it suitable for fault-tolerant quantum information processing. The optimum pulse shapes are obtained upon reduction of STIRAP to effective two-state systems. We use the Dykhne-Davis-Pechukas (DDP) method to minimize nonadiabatic transitions and to maximize the fidelity of STIRAP. This results in a particular relation between the pulse shapes of the two fields driving the Raman process. The DDP-optimized version of STIRAP maintains its robustness against variations in the pulse intensities and durations, the single-photon detuning and possible losses from the intermediate state.

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