Quadratic Wasserstein metrics for von Neumann algebras via transport plans

R Duvenhage - arXiv preprint arXiv:2012.03564, 2020 - arxiv.org
We show how one can obtain a class of quadratic Wasserstein metrics, that is to say,
Wasserstein metrics of order 2, on the set of faithful normal states of a von Neumann algebra …

An open-system approach to complex biological networks

R Rebolledo, SA Navarrete, S Kéfi, S Rojas… - SIAM Journal on Applied …, 2019 - SIAM
Biological diversity is essential for the maintenance of the ecosystem functions that support
life on the planet. Inherent to this diversity is the seemingly endless way in which the …

Decoherence free subspaces of a quantum Markov semigroup

J Agredo, F Fagnola, R Rebolledo - Journal of Mathematical Physics, 2014 - pubs.aip.org
We give a full characterisation of decoherence free subspaces of a given quantum Markov
semigroup with generator in a generalised Lindbald form which is valid also for infinite …

-fermi systems and detailed balance

V Crismale, R Duvenhage, F Fidaleo - Analysis and Mathematical Physics, 2021 - Springer
A systematic theory of product and diagonal states is developed for tensor products of Z _2 Z
2-graded*∗-algebras, as well as Z _2 Z 2-graded C^* C∗-algebras. As a preliminary step to …

Ergodicity of exclusion semigroups constructed from quantum Bernoulli noises

J Chen, S Hai - Stochastics and Dynamics, 2023 - World Scientific
Quantum Bernoulli noises (QBN) are the family of annihilation and creation operators acting
on Bernoulli functionals, which satisfy the canonical anti-commutation relation (CAR) in …

On quantum versions of the classical Wasserstein distance

J Agredo, F Fagnola - Stochastics, 2017 - Taylor & Francis
We investigate a definition of quantum Wasserstein distance of two states based on their
couplings on the product algebra as in the classical case. A detailed analysis of the two …

Weighted number operators on Bernoulli functionals and quantum exclusion semigroups

C Wang, Y Tang, S Ren - Journal of Mathematical Physics, 2019 - pubs.aip.org
Quantum Bernoulli noises (QBN for short) are the family of annihilation and creation
operators acting on Bernoulli functionals, which satisfy a canonical anticommutation relation …

On the relationships between covariance and the decoherence-free subalgebra of a quantum Markov semigroup

E Sasso, V Umanità - Infinite Dimensional Analysis, Quantum …, 2023 - World Scientific
In this paper, we investigate if the presence of symmetries in the evolution of an open
quantum system gives information about the invariant subspaces. Unfortunately, the answer …

Balance between quantum Markov semigroups

R Duvenhage, M Snyman - Annales Henri Poincaré, 2018 - Springer
The concept of balance between two state-preserving quantum Markov semigroups on von
Neumann algebras is introduced and studied as an extension of conditions appearing in the …

Extending quantum detailed balance through optimal transport

R Duvenhage, S Skosana, M Snyman - arXiv preprint arXiv:2206.15287, 2022 - arxiv.org
We develop a general approach to setting up and studying classes of quantum dynamical
systems close to and structurally similar to systems having specified properties, in particular …