125 citations · 923 across the 65 of their papers we have counts for
66 papers
On spatial decoherence in many-body systems
Stefano Marcantoni, Marco Merkli
We study the dynamics of a many-body quantum system strongly interacting with a bosonic reservoir. The coupling is given by a potential operator for the system and it is linear in…
The contact temperature of arbitrary quantum states
Alain Joye, Marco Merkli
An intuitive scheme to assign a temperature to an arbitrary state of a quantum system is to investigate the heat flow resulting from the coupling to a thermometer. We introduce a s…
Ultrastrongly coupled open systems and fine grained time
Stefano Marcantoni, Marco Merkli
We study the dynamics of a d-level quantum system coupled to a bosonic reservoir when the coupling constant is large. It is known that in the limit of infinite coupling strength, t…
Lectures on Open Quantum Systems
Marco Merkli, Ángel Neira
These notes are a short introduction to the mathematical theory of open quantum systems. They are meant to serve as an entry point into a broad research area which has applications…
Stability of PPT in equilibrium states
Marco Merkli, Mitch Zagrodnik
We use simple spectral perturbation theory to show that the positive partial transpose property is stable under bounded perturbations of the Hamiltonian, for equilibrium states in…
Non-Markovianity in collision models with initial intra-environment correlations
Graeme Pleasance, Angel E. Neira, Marco Merkli +1
Collision models (CMs) describe an open system interacting in sequence with elements of an environment, termed ancillas. They have been established as a useful tool for analyzing n…