Record link: 
http://hdl.handle.net/20.500.12708/223322
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Title: 
Proposal for an experiment to verify Wigner's rotation at non-relativistic speeds with massive spin-1/2 particles
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Citation: 
Palge, V., Dunningham, J., Hasegawa, Y., & Pfeifer, C. (2025). Proposal for an experiment to verify Wigner’s rotation at non-relativistic speeds with massive spin-1/2 particles. Physics Letters A, 544, Article 130490. https://doi.org/10.1016/j.physleta.2025.130490
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Publisher DOI: 
10.1016/j.physleta.2025.130490
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Publication Type: 
Article - Original Research Article
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Language: 
English
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Authors: 
Palge, Veiko 
Dunningham, Jacob 
Hasegawa, Yuji 
Pfeifer, Christian 
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Organisational Unit: 
E141-04 - Forschungsbereich Neutron- and Quantum Physics 
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Journal: 
Physics Letters A 
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ISSN: 
0375-9601
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Date (published): 
5-Jun-2025
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Number of Pages: 
5
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Publisher: 
ELSEVIER
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Peer reviewed: 
Yes
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Keywords: 
neutrons
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Abstract: 
The Wigner rotation of quantum particles with spin is one of the fascinating consequences of interplay between special relativity and quantum mechanics. In this paper we show that a direct experimental verification of Wigner's rotation is in principle accessible in the regime of non-relativistic velocities at ∼10³ ms⁻¹ for massive spin-1/2 particles. We discuss how the experiment could be carried out in a laboratory using cold neutrons. The measurement at non-relativistic velocities becomes possible through letting neutrons propagate for a sufficiently long time because Wigner rotation is a cumulative effect.
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Research Areas: 
Quantum Metrology and Precision Measurements: 70%
Design and Engineering of Quantum Systems: 30%
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Science Branch: 
1030 - Physik, Astronomie: 100%
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