Related papers: Quantum Tomography in Neutral Meson and Antimeson Systems

Quantum Tomography in Neutral Meson and Antimeson Systems

URL: http://arxiv.org/abs/2507.12513v1
Date: Wed, 16 Jul 2025 18:00:00 GMT
Title: Quantum Tomography in Neutral Meson and Antimeson Systems
Authors: Kun Cheng, Tao Han, Matthew Low, Tong Arthur Wu,
Abstract summary: 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 $t$.<n> 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.
Score: 4.715411959818119
License: http://creativecommons.org/licenses/by/4.0/
Abstract: 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.

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