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Q: Fachverband Quantenoptik und Photonik
Q 28: Quantum Gases (Bosons) III
Q 28.4: Vortrag
Mittwoch, 13. März 2019, 11:30–11:45, S HS 037 Informatik
Many-particle interference in the dynamics of bosonic mixtures — •Gabriel Dufour1,2, Tobias Brünner1, Alberto Rodríguez1, and Andreas Buchleitner1 — 1Physikalisches Institut, Albert-Ludwigs-Universität Freiburg — 2Freiburg Institute for Advanced Studies, Albert-Ludwigs-Universität Freiburg
We present a general framework to study the effect of many-particle interference on the dynamics of partially distinguishable bosons [1]. We start by showing how observables can be classified according to the order of the interference processes to which they are sensitive. In non-interacting systems, expectation values of single-particle observables are insensitive to the mutual indistinguishability of the particles, whereas those of two-particle observables show a clear signature of two-body interference processes. In interacting systems, however, the distinguishability of the initial Fock state also affects the expectation value of single-particle observables because of interaction-induced interference [2].
[1] T. Brünner, Signatures of partial distinguishability in the dynamics of interacting bosons, PhD thesis, Albert-Ludwigs-Universität Freiburg (2018)
[2] T.Brünner, G. Dufour, A. Rodríguez, A. Buchleitner, Phys. Rev. Lett. 120, 210401 (2018)