Speaker
Description
Quantum systems that interact non-locally with an environment are paradigms for exploring collective phenomena. They naturally emerge in various physical contexts involving long-range,vmany-body interactions. We consider a general class of such open systems characterized by a coupling to the environment which is inversely proportional to the square root of the environmentvsize. We demonstrate that the effect on the system dynamics has a universal bosonic character.vSpecifically, the same system dynamics is produced by the interaction with an environment of non-interacting bosonic modes, regardless of the microscopic details of the original environment. This emergent ‘bosonization’ of the environment’s influence results from the scaling of the coupling in
the thermodynamic limit and is a manifestation of the quantum central limit theorem. While the effect has been observed in specific models before, we show that it is, in fact, a universal feature.
| Keyword-1 | open quantum systems |
|---|---|
| Keyword-2 | quantum fluctuation |