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<p>We establish an interesting connection between a generalized variant of the Weyl–Heisenberg algebra and the qudit algebra spanned by the raising and lowering operators of a <i>d</i>-level quantum system. We also discuss the realization of the qudit algebra in terms of the elementary excitation operators of <InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10773_2025_6078_Article_IEq2.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="52" /> </InlineMediaObject> <EquationSource Format="TEX">\((d-1)\)</EquationSource> </InlineEquation> identical two-level quantum systems. This construction provides the Fock representation space of the qudit algebra, spanned by Dicke states, as well as the analytical Bargmann realization, which offers a geometrical picture representing each qubit on the Bloch sphere. This approach employs the formalism of coherent states and the concept of Majorana stars. As an illustration, we examine the determination of Majorana stars for even and odd coherent states.</p>

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Majorana Stars of Odd and Even Coherent States of the Generalized Weyl-Heisenberg Oscillator \(\mathcal{A}_{\kappa }\)

  • 期刊论文

  • 发表日期：

    2025年7月19日

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  • M. Alaoui,
  • E. Mouhaoui,
  • B. Maroufi,
  • M. Daoud

摘要

We establish an interesting connection between a generalized variant of the Weyl–Heisenberg algebra and the qudit algebra spanned by the raising and lowering operators of a d-level quantum system. We also discuss the realization of the qudit algebra in terms of the elementary excitation operators of \((d-1)\) identical two-level quantum systems. This construction provides the Fock representation space of the qudit algebra, spanned by Dicke states, as well as the analytical Bargmann realization, which offers a geometrical picture representing each qubit on the Bloch sphere. This approach employs the formalism of coherent states and the concept of Majorana stars. As an illustration, we examine the determination of Majorana stars for even and odd coherent states.