论文标题
评论“在极端条件下重夸克”
Comment on "Heavy Quarkonium in Extreme Conditions"
论文作者
论文摘要
在最近的一篇论文（Arxiv：1912.02253）中，Rothkopf声称Bryan方法被广泛用于在最大熵方法中获取解决方案，并使用矩阵的单数值分解，限制了解决方案的搜索空间。他甚至对Bryan方法进行了反例。在此评论中，我们首先概括了Bryan方法的数学基础，并重新确认它不使用近似值，因此在数学上是严格的。在第二部分中，我们明确地表明，Rothkopf的``反例子''实际上并不构成基于单数值分解本身的定义。
In a recent paper (arXiv:1912.02253), Rothkopf claims that the Bryan method, which is widely used to obtain the solution in the maximum entropy method and makes use of the singular value decomposition of a matrix, limits the search space for the solution. He even presents a counterexample to the Bryan method. In this comment, we first recapitulate the mathematical basis of the Bryan method, and reconfirm that it makes use of no approximations and that it is therefore mathematically rigorous. In the second part, we explicitly show that Rothkopf's ``counterexample'' actually does not constitute a counterexample on the basis of the definition of singular value decomposition itself.
