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Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 43: Quantum gases (Bosons) (joint session A/Q)

Q 43.5: Talk

Thursday, March 14, 2019, 11:30–11:45, S HS 1 Physik

Quantum walks of two cobosons — •Mama Kabir Njoya Mforifoum1, Gabriel Dufour1,2, and Andreas Buchleitner11Institute of Physics, Albert-Ludwigs University of Freiburg, Germany — 2Freiburg Institute for Advanced Studies, Albert-Ludwigs University of Freiburg, Germany

A quantum walker is a particle evolving coherently over a network of sites and therefore has the ability to interfere with itself, contrary to its classical counterpart. The extension to two-particle quantum walks leads to the introduction of interactions and many-particle interference depending on the particles' statistics (bosonic or fermionic) and their distinguishability. We compare the quantum walk of two interacting cobosons (two pairs of bounded fermions) on a 1D lattice with that of two elementary bosons, and investigate to which extent the composite nature of the cobosons affects their dynamics.

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