Pulse-driven near-resonant quantum adiabatic dynamics: lifting of quasi-degeneracy

Details Pulse-driven near-resonant quantum adiabatic dynamics: lifting of quasi-degeneracy Pulse-driven near-resonant quantum adiabatic dynamics: lifting of quasi-degeneracy

2003-12-09

arxiv.org/abs/quant-ph/0312080v1

Physics

Quantum Physics

21 pages, 12 figures

Scientific paper

10.1103/PhysRevA.70.043402

We study the quantum dynamics of a two-level system driven by a pulse that starts near-resonant for small amplitudes, yielding nonadiabatic evolution, and induces an adiabatic evolution for larger amplitudes. This problem is analyzed in terms of lifting of degeneracy for rising amplitudes. It is solved exactly for the case of linear and exponential rising. Approximate solutions are given in the case of power law rising. This allows us to determine approximative formulas for the lineshape of resonant excitation by various forms of pulses such as truncated trig-pulses. We also analyze and explain the various superpositions of states that can be obtained by the Half Stark Chirped Rapid Adiabatic Passage (Half-SCRAP) process.

Affiliated with

Also associated with

No associations

Rating

Pulse-driven near-resonant quantum adiabatic dynamics: lifting of quasi-degeneracy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pulse-driven near-resonant quantum adiabatic dynamics: lifting of quasi-degeneracy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulse-driven near-resonant quantum adiabatic dynamics: lifting of quasi-degeneracy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-41651