English

Variational representations related to Tsallis relative entropy

Mathematical Physics 2020-05-11 v1 math.MP

Abstract

We develop variational representations for the deformed logarithmic and exponential functions and use them to obtain variational representations related to the quantum Tsallis relative entropy. We extend Golden-Thompson's trace inequality to deformed exponentials with deformation parameter q[0,1], q\in[0,1], thus complementing the second author's previous study of the cases with deformation parameter q[1,2] q \in [1,2] or q[2,3]. q \in [2,3].

Keywords

Cite

@article{arxiv.1901.06807,
  title  = {Variational representations related to Tsallis relative entropy},
  author = {Guanghua Shi and Frank Hansen},
  journal= {arXiv preprint arXiv:1901.06807},
  year   = {2020}
}
R2 v1 2026-06-23T07:17:15.438Z