# Quantum contextuality for a three-level system sans realist model

Source: [Quantum contextuality for a three-level system sans realist model](<https://www.sota2.com/research/paper/68fa37d11e209131ce8b536d>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T22:36:19.397Z

Authors: A. K. Pan, K. Mandal

Published: 2018-06-04T16:11:35.000Z

## Abstract

Recently, an interesting form of non-classical effect which can be considered as a form of contextuality within quantum mechanics, has been demonstrated for a four-level system by discriminating the different routes that are taken for measuring a single observable. In this paper, we provide a simpler version of that proof for a single qutrit, which is also within the formalism of quantum mechanics and without recourse to any realist hidden variable model. The degeneracy of the eigenvalues and the L$\\ddot{u}$der projection rule play important role in our proof.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1806.01171>)

[PDF](<https://arxiv.org/pdf/1806.01171.pdf>)