Phys. Rev. A 57, 3698–3704 (1998)Phase and rise-time dependence using rf pulses in multiphoton processesReceived 12 May 1997; revised 26 November 1997; published in the issue dated May 1998 With this experiment we demonstrate that excitation of a two-state system with radio-frequency fields differing in phase by 90° produces nonintuitively different results, even for very long pulses. In addition, we show how the phase dependence of the transition probability of long pulses can be easily understood by using the single cycle time propagator. Finally, we have found surprising results for real pulses in the strong-field regime, i.e., pulses having appreciable rise and fall times. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.57.3698
DOI:
10.1103/PhysRevA.57.3698
PACS:
32.80.Wr
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