论文标题
太阳质中中微子风味进化的新描述
New description of neutrino flavour evolution in solar matter
论文作者
论文摘要
假设可以将相互作用的中微子和太阳物物质视为开放的量子系统，我们根据bloch载体的形式形式，通过求解von noumann方程的准线性扩展而获得了中微子状态进化的形式。我们通过利用严格的线性von Neumann方程来扩大古典沃尔芬斯坦形式主义，并根据适用于准线性方法的数量重新解释结果。我们获得了在两种方法中在地球上测得的平均中微子生存概率的平均中微子生存概率的相似预测，这与跨线性进化预测振荡的阳光内的细节有所不同。我们讨论了中微子与太阳之间的能量转移问题以及两种方法中国家进化的速度。
Assuming that the interacting neutrino and the solar matter can be treated as an open quantum system we formulate a formalism of neutrino state evolution in terms of the Bloch vector, obtained by solving a quasilinear extension of the von Neumann equation. We broaden the classical Wolfenstein formalism by means of exploiting the strictly linear von Neumann equation and reinterpreting the results in terms of the quantities appropriate for the quasilinear approach. We obtain similar predictions for the averaged neutrino survival probability measured on Earth in both approaches, differing by details inside the Sun where the quasilinear evolution predicts a suppression of oscillations. We discuss the issues of energy transfer between the neutrino and the Sun and the speed of the state evolution in both approaches.
