Quantum Tomography in Neutral Meson and Antimeson Systems

Fuente: arXiv
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Main Authors: Cheng, Kun, Han, Tao, Low, Matthew, Wu, Tong Arthur
Format: Preprint
Published: 2025
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author Cheng, Kun
Han, Tao
Low, Matthew
Wu, Tong Arthur
author_facet Cheng, Kun
Han, Tao
Low, Matthew
Wu, Tong Arthur
contents The flavor space of particles produced in collider environments contains informative quantum correlations. We present a systematic approach for constructing the complete flavor density matrix for a meson and antimeson system ($M \bar M$) in the Bloch vector space at a given time $t$, which can be at or after production. We point out that the $B_s^0$ and $K^0$ systems are superior to the $B^0_d$ and $D^0$ systems for quantum tomography because of their flavor oscillation and decay properties. Performing quantum tomography for the $M \bar M$ system can facilitate the study of production mechanisms, decoherence phenomena, quantum information variables, and potential new sources of CP violation.
format Preprint
id arxiv_https___arxiv_org_abs_2507_12513
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Quantum Tomography in Neutral Meson and Antimeson Systems
Cheng, Kun
Han, Tao
Low, Matthew
Wu, Tong Arthur
High Energy Physics - Phenomenology
High Energy Physics - Experiment
Quantum Physics
The flavor space of particles produced in collider environments contains informative quantum correlations. We present a systematic approach for constructing the complete flavor density matrix for a meson and antimeson system ($M \bar M$) in the Bloch vector space at a given time $t$, which can be at or after production. We point out that the $B_s^0$ and $K^0$ systems are superior to the $B^0_d$ and $D^0$ systems for quantum tomography because of their flavor oscillation and decay properties. Performing quantum tomography for the $M \bar M$ system can facilitate the study of production mechanisms, decoherence phenomena, quantum information variables, and potential new sources of CP violation.
title Quantum Tomography in Neutral Meson and Antimeson Systems
topic High Energy Physics - Phenomenology
High Energy Physics - Experiment
Quantum Physics
url https://arxiv.org/abs/2507.12513