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quant-ph2025
Bosonization of Noise Effects in Nonlocal Quantum Dynamics
Michele Fantechi, Marco Merkli
Quantum systems that interact non-locally with an environment are paradigms for exploring collective phenomena. They naturally emerge in various physical contexts involving long-ra…
quant-ph2024
Quantum systems coupled to environments via mean field interactions
Michele Fantechi, Marco Merkli
We show that when a quantum system is coupled to an environment in a mean field way, then its effective dynamics is governed by a unitary group with a time-dependent Hamiltonian. T…
quant-ph2024★ 1 cited
Quasi-classical Limit of a Spin Coupled to a Reservoir
Michele Correggi, Marco Falconi, Michele Fantechi +1
A spin (qubit) is in contact with a bosonic reservoir. The state of the reservoir contains a parameter {\varepsilon} interpolating between quantum and classical reservoir features.…