Molecular binding in interacting quantum walks
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Molecular binding in interacting quantum walks. / Ahlbrecht, Andre; Alberti, Andrea; Meschede, Dieter; Scholz, Volkher B.; Werner, Albert H.; Werner, Reinhard F.
In: New Journal of Physics, Vol. 14, 073050, 07.2012.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Molecular binding in interacting quantum walks
AU - Ahlbrecht, Andre
AU - Alberti, Andrea
AU - Meschede, Dieter
AU - Scholz, Volkher B.
AU - Werner, Albert H.
AU - Werner, Reinhard F.
PY - 2012/7
Y1 - 2012/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84864372050&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/14/7/073050
DO - 10.1088/1367-2630/14/7/073050
M3 - Journal article
AN - SCOPUS:84864372050
VL - 14
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
M1 - 073050
ER -
ID: 256316799