| Autor: |
Brünner, Tobias, Dufour, Gabriel, Rodríguez, Alberto, Buchleitner, Andreas |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Lett. 120, 210401 (2018) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.120.210401 |
| Popis: |
The dynamics of bosons in generic multimode systems, such as Bose-Hubbard models, is not only determined by interactions among the particles, but also by their mutual indistinguishability manifested in many-particle interference. We introduce a measure of indistinguishability for Fock states of bosons whose mutual distinguishability is controlled by an internal degree of freedom. We demonstrate how this measure emerges both in the non-interacting and interacting evolution of observables. In particular, we find an unambiguous relationship between our measure and the variance of single-particle observables in the non-interacting limit. A non-vanishing interaction leads to a hierarchy of interaction-induced interference processes, such that even the expectation value of single-particle observables is influenced by the degree of indistinguishability. |
| Databáze: |
arXiv |
| Externí odkaz: |
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