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arXiv · 1912.01092

Multimode N00N states in driven atomtronic circuits

Enrico Compagno·Guillaume Quesnel·Anna Minguzzi·Luigi Amico·Denis Feinberg
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Abstract

We propose a method to generate multi-mode N00N states with arrays of ultracold atoms. Our protocol requires a strong relative offset among the wells and a drive of the interparticle interaction at a frequency resonant with the offsets. The proposal is demonstrated by a numerical and a Floquet analysis of the quantum dynamics of a ring-shaped atomtronics circuit made of M weakly coupled optical traps. We generate a hierarchy of energy scales down to very few low-energy states where N00N dynamics takes place, making multi-mode N00N states appear at nearly regular time intervals. The production of multi-mode N00N states can be probed by time-of-flight imaging. Such states may be used to build a multiple beam splitter.

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Enrico Compagno, Guillaume Quesnel, Anna Minguzzi, Luigi Amico, Denis Feinberg. 2019-12-02. Multimode N00N states in driven atomtronic circuits. https://doi.org/10.1103/physrevresearch.2.043118

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