2 papers
math-ph2026
Bounds on relative modular Hamiltonians in general QFT
Adriano Chialastri, Christoph Minz, Ko Sanders
The relative entropy between two states is a key concept in quantum information theory and quantum field theory. In the setting of quantum field theory, its computation requires th…
math-ph2025
Quasi-equivalence of Gaussian states and energy estimates for functions of modular Hamiltonians
Adriano Chialastri, Ko Sanders
To compare two Gaussian states of the Weyl-CCR algebra of a free scalar QFT we study three closely related perspectives: (i) quasi-equivalence of the GNS-representations, (ii) diff…