Report
Quantum spin-flavour memory of ultrahigh-energy neutrino
| العنوان: | Quantum spin-flavour memory of ultrahigh-energy neutrino |
|---|---|
| المؤلفون: | Kurashvili, P., Chotorlishvili, L., Kouzakov, K. A., Studenikin, A. I. |
| سنة النشر: | 2022 |
| المجموعة: | High Energy Physics - Phenomenology High Energy Physics - Theory Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, High Energy Physics - Phenomenology, High Energy Physics - Theory |
| الوصف: | There are two types of uncertainties related to the measurements done on a quantum system: statistical and those related to non-commuting observables and incompatible measurements. The latter indicates the quantum system's inherent nature and is in the scope of the present study. We explore uncertainties related to the interstellar ultrahigh-energy neutrino and introduce a novel concept: quantum spin-flavour memory. Advanced uncertainty measures are entropic measures, and the effect of the quantum memory reduces the uncertainty. The problem in question corresponds to a real physical event: high-energy Dirac neutrinos emitted by some distant source and propagating towards the earth. The neutrino has a finite magnetic moment and interacts with both deterministic and stochastic interstellar magnetic fields. To describe the effect of a noisy environment, we exploit the Lindblad master equation for the neutrino density matrix. Quantum spin-flavour memory we quantify in terms of the generalized Kraus's trade-off relation. This trade-off relation converts to the equality when quantum memory is absent. We discovered that while most measures of quantum correlations show their irrelevance, the quantum spin-flavour discord is the quantifier of the quantum spin-flavour memory. Comment: 11 pages, 8 figures, submitted to The European Physical Journal Plus |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2202.06735 |
| رقم الانضمام: | edsarx.2202.06735 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |