Ahlbrecht, Andre
[Author];
Alberti, Andrea
[Author];
Meschede, Dieter
[Author];
Scholz, Volkher B.
[Author];
Werner, Albert H.
[Author];
Werner, Reinhard F.
[Author]
Molecular binding in interacting quantum walks
- [published Version]
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Media type:
E-Article;
Text
Title:
Molecular binding in interacting quantum walks
Contributor:
Ahlbrecht, Andre
[Author];
Alberti, Andrea
[Author];
Meschede, Dieter
[Author];
Scholz, Volkher B.
[Author];
Werner, Albert H.
[Author];
Werner, Reinhard F.
[Author]
Footnote:
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Description:
We show that the presence of an interaction in the quantum walk of two atoms leads to the formation of a stable compound, a molecular state. The wave function of the molecule decays exponentially in the relative position of the two atoms; hence it constitutes a true bound state. Furthermore, for a certain class of interactions, we develop an effective theory and find that the dynamics of the molecule is described by a quantum walk in its own right. We propose a setup for the experimental realization as well as sketch the possibility to observe quasi-particle effects in quantum many-body systems. ; DFG/FOR/635 ; European Commission/CORNER ; European Commission/COQUIT ; European Commission/AQUTE ; NRW Nachwuchsgruppe ‘Quantenkontrolle auf der Nanoskala’ ; Alexander von Humboldt Foundation