Work

Entropy Contraction and Hypercontractivity for Gaussian Quantum Markov Semigroups

Year: 2026
Type: preprint
Abstract: In this paper, we study finite-mode Gaussian quantum Markov semigroups with a faithful invariant Gaussian state. We present an algebraic characterization of the complete modified logarithmic Sobolev inequality relative to the fixed-point algebra, and we obtain the corresponding optimal constant under the assumption that the drift evolution $e^{t\mathbf{Z}}$ converges as $t\to\infty$. We establish hypercontractivity for such quantum Markov semigroups with Hurwitz drift, in the sense that every fixed pair $1
Language: English
Open Access status: green
OpenAlex ID: W7220700992
Cites: 14
Cited by: 2
Related to: 10