Applying Quantum Tomography to Hadronic Interactions

Journal Article · 14 July 2022 · SciPost Physics Proceedings

DOI: https://doi.org/10.21468/SciPostPhysProc.8.154 · OSTI ID:1876099

Martens, J. C. ^[1]; Ralston, John ^[1]; Tapia Takaki, Daniel ^[1]

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1. University of Kansas

A proper description of inclusive reactions is expressed with density matrices. Quantum tomography reconstructs density matrices from experimental observables. We review recent work that applies quantum tomography to practical experimental data analysis. Almost all field-theoretic formalism and modeling used in a traditional approach is circumvented with great efficiency. Tomographically-determined density matrices can express information about quantum systems which cannot in principle be expressed with distributions defined by classical probability. Topics such as entanglement and von Neumann entropy can be accessed using the same natural language where they are defined. A deep relation exists between separability, as defined in quantum information science, and factorization, as defined in high energy physics. Factorization acquires a non-perturbative definition when expressed in terms of a conditional form of separability. An example illustrates how to go from data for momentum 4-vectors to a density matrix while bypassing almost all the formalism of the Standard Model.

• Sponsoring Organization: USDOE
• Grant/Contract Number: SC0020914
• OSTI ID: 1876099
• Journal Information: SciPost Physics Proceedings, Journal Name: SciPost Physics Proceedings Journal Issue: 8; ISSN 2666-4003
• Publisher: Stichting SciPostCopyright Statement
• Country of Publication: Netherlands
• Language: English