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Adiabatic creation of coherent superposition states via multiple intermediate states

2003/02/19 by A. Karpati, Z. Kis, Z Kis · 25 citations
Mathematics · Physics and Astronomy · #Adiabatic process #Amplitude #Atomic and Subatomic Physics Research #Atomic physics #Coupling (piping) #Dark state #Laser #Materials science #Mathematics #Physics #Population #Quantum mechanics #Quantum optics and atomic interactions #Spectroscopy and Quantum Chemical Studies #State (computer science) #Stimulated Raman adiabatic passage #Superposition principle #quant-ph

paper · pdf · doi:10.1088/0953-4075/36/5/310

published in Journal of Physics B Atomic Molecular and Optical Physics 36(5), 905-919 (IOP Publishing) · 7 pages, 10 figures

openalex publication_date 2003/02/19 · arxiv created 2003/09/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider an adiabatic population transfer process that resembles the well-established stimulated Raman adiabatic passage. In our system, the states have nonzero angular momentums J , therefore, the coupling laser fields induce transitions between the magnetic sublevels of the states. In particular, we discuss the possibility of creating coherent superposition states in a system with coupling pattern J = 0 ⇔ 1 and 1 ⇔ 2. Initially, the system is in the J = 0 state. We show that by, applying two delayed overlapping laser pulses, it is possible to create any final superposition state of the magnetic sublevels |2, −2⟩, |2, 0⟩, |2, +2⟩. Moreover, we find that the relative phases of the applied pulses influence not only the phases of the final superposition state but also the probability amplitudes. We show that if we fix the shape and the time delay between the pulses, the final state space can be entirely covered by varying the polarizations and relative phases of the two pulses. Performing numerical simulations we find that our transfer process is nearly adiabatic for the whole parameter set.

Citations