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math-ph2026
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…
quant-ph2026
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…