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<p>A T-shaped plasmonic nano-waveguide is used to investigate the entanglement properties generated between two quantum dots (QDs) embedded in a common cavity. The probability amplitudes of each QD’s excitation are determined by solving the time-independent Schrödinger equation using rotational wave approximation and real space method. The entanglement of two QDs is measured by pairwise concurrence, which is discussed numerically through various physical parameters such as detuning and coupling strengths, etc. We demonstrate that our proposed hybrid nano-system could be achievable high concurrence under the appropriate setting of the physical parameters.</p>

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Controllable Entanglement of a Pair of Quantum Dots Embedded in a Common Cavity by a T-Shaped Plasmonic Waveguide

  • 期刊论文

  • 发表日期：

    2025年3月15日

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  • Gang-Yong Ri,
  • Ju-Song Ryom,
  • Myong-Chol Ko,
  • Nam-Chol Kim,
  • Su-Ryon Ri,
  • Chol-Min Kim,
  • Lu-Xia Wang

摘要

A T-shaped plasmonic nano-waveguide is used to investigate the entanglement properties generated between two quantum dots (QDs) embedded in a common cavity. The probability amplitudes of each QD’s excitation are determined by solving the time-independent Schrödinger equation using rotational wave approximation and real space method. The entanglement of two QDs is measured by pairwise concurrence, which is discussed numerically through various physical parameters such as detuning and coupling strengths, etc. We demonstrate that our proposed hybrid nano-system could be achievable high concurrence under the appropriate setting of the physical parameters.