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Topics
Quantum Algorithms
Methods on compositeness and related aspects
arXiv
Authors: J. A. Oller
Year
2022
Paper ID
57693
Status
Preprint
Abstract Read
~2 min
Abstract Words
74
Citations
N/A
Abstract
In many physical applications, bound states and/or resonances are observed, which raises the question whether these states are elementary or composite. Here we elaborate on several methods for calculating the compositeness X of bound states and resonances in Quantum Mechanics, and in Quantum Field Theory by introducing particle number operators. For resonances X is typically complex and we discuss how to get meaningful results by using certain phase transformations in the S matrix.
Why This Paper Matters
- It adds a 2022 reference point for readers tracking recent quantum research.
- In many physical applications, bound states and/or resonances are observed, which raises the question whether these states are elementary or composite.
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