Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "Fluctuation Theorem Uncertainty Relation" and "Thermodynamic
  Uncertainty Relations from Exchange Fluctuation Theorems"   In recent letter [Phys.~Rev.~Lett {\bf 123}, 110602 (2019)], Y.~Hasegawa and
T.~V.~Vu derived a thermodynamic uncertainty relation. But the bound of their
relation is loose. In this comment, through minor changes, an improved bound is
obtained. This improved bound is the same as the one obtained in
[Phys.~Rev.~Lett {\bf 123}, 090604 (2019)] by A.~M.~Timpanaro {\it et. al.},
but the derivation here is straightforward.

21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ