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Single impurity atom embedded in a dipolar two-soliton molecule as a qubit

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  • Al-Marzoug, S.M.
  • Baizakov, B.B.
  • Khawaja, U. Al
  • Bahlouli, H.

Abstract

We consider a single impurity atom trapped in a double well (DW) potential created by a dipolar two-soliton molecule in a quasi-one-dimensional geometry. By solving the eigenvalue problem for the impurity atom in the DW potential, we find that its ground and first excited states are well separated from higher excited states. This allows it to be approximated by a desirable two-level quantum system. Numerical simulations of the Schrödinger equation, governing impurity atom, demonstrate periodic oscillations in the probability of finding the impurity confined either to the “left” or to the “right” well of the DW potential. An analytic expression for the coherent oscillations of the population imbalance between the two wells of the DW potential has been derived using the two-mode approximation. Theoretical predictions of the mathematical model are in good agreement with the results of numerical simulations. Potential usage of the developed setup as a physical realization of “qubit” has been discussed.

Suggested Citation

  • Al-Marzoug, S.M. & Baizakov, B.B. & Khawaja, U. Al & Bahlouli, H., 2026. "Single impurity atom embedded in a dipolar two-soliton molecule as a qubit," Chaos, Solitons & Fractals, Elsevier, vol. 206(C).
    • Handle: RePEc:eee:chsofr:v:206:y:2026:i:c:s0960077926000822
    DOI: 10.1016/j.chaos.2026.117941
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