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Constructing quantum angular momentum L3 in specific direction by using U(1) group


Citation

Rosli, Ahmad Aqwa and Mohd Shah, Nurisya (2024) Constructing quantum angular momentum L3 in specific direction by using U(1) group. Malaysian Journal of Science, 43 (3). pp. 56-58. ISSN 1394-3065; eISSN: 2600-8688

Abstract

The purpose of this work is to investigate the mathematical structure of finite quantum angular momentum in a specific direction L3 which can be constructed from the representation of the U(1) group. The angular momentum eigenstate is invariant under Abelian rotation symmetry. The character group of U(1) is constructed to show that there exists an additive unitary operator for the angular momentum eigenstate, and the rotation eigenstate is invariant under it. The Weyl relation is proved by showing that the angle and angular momentum L3 are the canonical conjugate pair of observables.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute for Mathematical Research
DOI Number: https://doi.org/10.22452/mjs.vol43no3.7
Publisher: Faculty of Science, Universiti Malaya
Keywords: Character group; Group; Group representation; Quantum angular momentum
Depositing User: Ms. Zaimah Saiful Yazan
Date Deposited: 10 Jul 2025 03:13
Last Modified: 10 Jul 2025 03:13
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.22452/mjs.vol43no3.7
URI: http://psasir.upm.edu.my/id/eprint/118429
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