Quantum Tomography Measures Entanglement in Collider Reactions
John C. Martens, John P. Ralston, and Daniel Tapia Takaki
TL;DR
This paper reviews how quantum tomography can be used to measure and analyze entanglement in collider reactions, connecting quantum information concepts with high energy physics experiments.
Contribution
It introduces the application of quantum tomography to high energy reactions, linking separability in quantum information with factorization in physics.
Findings
Quantum tomography determines density matrices from experimental data.
Separable probes relate to factorization in collider reactions.
The approach bridges quantum information and high energy physics.
Abstract
Entanglement in high energy and and nuclear reactions is receiving great attention. A proper description of these reactions uses density matrices, and the express of entanglement in terms of {\it separability}. Quantum tomography bypasses field-theoretic formalism to determine density matrices in terms of experimental observables. We review recent work applying quantum tomography to practical experimental data analysis. We discuss the relation between separability, as defined in quantum information science, and factorization, as defined in high energy physics. When factorization applies, it comes from using separable probes, which tomographically determine separable projections of entangled density matrices.
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Taxonomy
TopicsAdvanced Electron Microscopy Techniques and Applications · Atomic and Subatomic Physics Research · Advanced X-ray Imaging Techniques