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- W2490522157 abstract "Tight-binding lattice models allow the creation of bound composite objects which, in the strong-interacting regime, are protected against dissociation. We show that a local impurity in the lattice potential can generate a coherent split of an incoming bound particle wave-packet which consequently produces a NOON state between the endpoints. This is non trivial because when finite lattices are involved, edge-localisation effects make their use for non-classical state generation and information transfer challenging. We derive an effective model to describe the propagation of bound particles in a Bose-Hubbard chain. We introduce local impurities in the lattice potential to inhibit localisation effects and to split the propagating bound particle, thus enabling the generation of distant NOON states. We analyse how minimal engineering transfer schemes improve the transfer fidelity and we quantify the robustness to typical decoherence effects in optical lattice implementations. Our scheme potentially have an impact on quantum-enhanced atomic interferometry in a lattice." @default.
- W2490522157 created "2016-08-23" @default.
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- W2490522157 date "2017-01-09" @default.
- W2490522157 modified "2023-09-24" @default.
- W2490522157 title "NOON states via a quantum walk of bound particles" @default.
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- W2490522157 doi "https://doi.org/10.1103/physreva.95.012307" @default.
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