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Abstract <p>The issue of the dichotomy between the elementary and composite nature of a finite-dimensional quantum system is discussed within the framework of the generalized Stratonovich–Weyl formulation of quantum mechanics. Performing numerical studies, we demonstrate how information on the possibility of realizing a virtual 2-level subsystem is encoded in the properties of the Wigner function of a total 4-level system.</p>

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On the Dichotomy between Quatrits and Pairs of Qubits in the Stratonovich-Weyl Correspondence

  • 期刊论文

  • 发表日期：

    2025年8月29日

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  • A. Khvedelidze,
  • I. Rogozhin

摘要

Abstract

The issue of the dichotomy between the elementary and composite nature of a finite-dimensional quantum system is discussed within the framework of the generalized Stratonovich–Weyl formulation of quantum mechanics. Performing numerical studies, we demonstrate how information on the possibility of realizing a virtual 2-level subsystem is encoded in the properties of the Wigner function of a total 4-level system.